H&K Armorer Tips, Tools and Procedures For Cleaning a MP5

In this video I provide my recommendations, as a H&K Certified Armorer, on the tips, tools and procedures for cleaning a MP5. This also applies to the civilian product lines, clones, as well as the rifle caliber roller delayed blowback line from H&K.
If you are in need of H&K Armorer Services or are interested in taking a H&K Armorer Course, visit www.teufelshundtactical.com.

[@operator001]

I laughed when you mentioned the steel bristle brush is probably $50 because it has the HK logo on it. It’s probably true. Great video, lot of good information.

[@ryanjofre]

Only a Meth addict would spend $50 on an HK brush!😂😂 The MP5 clones from companies like MKE in Turkey are most as good as authentic arms with HK(😂)on them for 1/3rd or less the price.😂😂

[@rifleshooterchannel208]

@@ryanjofreSomeone with such a habit wouldn’t have $50 to spend on anything else but their habit 😂 There’s some DIY articles on how to make a brush out of PVC pipe and other stuff from the hardware store for a couple bucks.

[@acefrm1593]

This is how it goes when you buy brand name, you’re going to pay for the name vs buying something similar for less.

[@Toddstang68]

I've owned my MP5 for over 10 years and never knew half this about cleaning. Great info and really detailed! Thank you!

[@teufelshundtactical]

My pleasure. Imagine what you’d learn by attending one of my training courses.

[@ryanjofre]

No shame in that! We’re all just learning every day! The shame is egomaniacs and arrogant people who don’t wanna learn new and think they know it all!!’

[@JoefromSoCal]

I’ve watched a lot of videos on HK roller delayed systems. You are the only person who always uses correct nomenclature. Great videos. Thank you.

[@CountryDocMD]

Now that I’m shooting suppressed, I have learned just how dirty a weapon can get. You’re advice to wipe things down BEFORE using solvent was the single best piece of advice I have ever heard. Seriously. I can’t believe I never thought of this. It is spot on great advice. I just spent 5 hours cleaning weapons today and I used less solvent than ever before with much better results. Everyone needs to learn this. Wipe down first. Solvent later. KISS principle. Thank you.

[@teufelshundtactical]

Happy to help.

[@rafaelcampuwork]

I remember the principle made me kiss him once too. Told me to stay after school for detention but there was Noone else there. The principles lips tasted like cigars and whiskey. Don't know what kissing the principle has to do with guns though. Weirdo.

[@aarondyer7666]

I have to confirm when home but the Ap5's from century arms (turkish imports) have swing pin. Not sure of its releasing for sale, relative to video release. Super sweet civilian variant that i believe were made on ole h&k machines. Oh and super sweet video, love the attention to detail.

[@chrisbulldog1353]

Always enjoy these take down videos plus the cleaning love the nitty-gritty bits

[@PhasedPlasmaPainting]

Amazing video - thanks for sharing! Definitely incorporating all of this into my cleaning routine going forward.

[@Supreme19]

Love these videos!! You possibly have saved a few owners MP5's lives (including my own) with this one ;-)

[@mkultra6664]

Another wonderfully informative video and great instructions!

[@joeflowers9084]

This was super informative and helpful. Thanks for taking the time to do this. I don't even own an MP5, but it was cool to see it broken down and everything explained.

[@1966Hemi426]

Thank you so much for taking the time to educate me on the MP5. I feel very confident on the tear down and reassembly for the cleaning and maintenance. I finally purchased one and love it. It’s just a whole new platform to learn about. I’m very meticulous about cleaning and maintenance.

[@rickrowe3903]

Your videos have been so helpful to me. Thank you

[@WesMerc]

Great video. I’m sure I will come back and reference this many times.

[@patrickthompson389]

Great content. This will live on.

[@robertkasco2010]

Great instructions, have seen several basic maintenamce vids on the MP5 and clones, and this is the most detailed with specific information on ejector, MP5 series (semi vs Auto) and especially with the other trigger groups... Thank you

[@donamboyer]

Thank you for making this video and looking forward to taking an operator's course with you!

[@guillermowilliams2970]

Thank you sir for your expertise, it was a great video and very informative on how to care for my MP-5.

[@GrumpyBearArms]

This was great! Great tips and tricks. Thank you.

[@erickwilliams8863]

I cannot thank you enough for this deep dive thorough video. I am a lifelong MP5 lover. Now that I own a full auto, this will help me maintain it properly. I will NEVER not have this video! You're awesome bud!

[@CMDR.Gonzo.von.Richthofen]

Great video, and SWEET Bojangles shirt! Haven't eaten there since my own Teufelshund days in NC, so like 20+ years😬

[@shaquileoatmeal7365]

So glad I found this video. Thanks man

[@tmaddrummer]

Greatly appreciated, thanks and blessings!

[@elijahcrawford8172]

Thank you so much for this video! I just got my sp5 it’s been a dream of mine to own and mp5 and I was going to clean it the same way as my AR. I learned so much from the vid! Thank you!

[@teufelshundtactical]

My Pleasure

[@ronwackford9720]

Thanks alot for this video. Really well done!

[@johnwitherell6662]

This was such a great and authoritative video, thanks for making it. You were totally right about that steel HK brush tool, there isn't a great substitute for it and it does the job really well. When I bought my AP5 I replaced the extractor spring with an HK one and have plenty of spares thanks to your advice which has I'm sure enabled me to shoot mine flawlessly.

[@teufelshundtactical]

My pleasure. Tons of knowledge being dropped at my Armorer and Operator Courses too.

[@jamesnelson5443]

Just wanted to say thank you for such an amazing video! I’m fairly new to the roller-delayed world, and my first time cleaning mine I probably took way too long cleaning off muck. Your technique of simple dry cleaning first made my 2nd go around so much quicker.

[@teufelshundtactical]

My pleasure. Always happy to share my knowledge and experience. Come join me for one of the training courses to continue the addiction.

[@CTTH100]

Loved the thorough video. Only thing I was hoping for was more precise information on the lubrication points.

[@teufelshundtactical]

If it’s metal, Lube.

[@CTTH100]

@@teufelshundtactical 😆😆 Gotcha!! Happy Holidays!

[@AKEFMA]

EXCELLENT video!!! Thank you!!!

[@buddymorgan4165]

Nice video, cleaning a MP5 or SP5 is quite a task.

[@golfingkrab4338]

I once cleaned my MP5 upper with a garden hose and a hairdryer. worked great

[@Timflan]

New owner here. THANK YOU! Lots of little tricks I didn't figure out on my own. Luckily I haven't done anything REALLY wrong, so far. :-)

[@mattfoster6014]

Great video, thanks!

[@reliablethreat23]

Excellent video.

[@guydavid8656]

Very good detail , helpful as I’ve been quite the newspapered slob when cleaning my HK , and cut up t-shirts do carry lint 😂

[@denbeigh]

Probably the most detailed cleaning video, very cool seeing the sd broken down too, pretty rare to find that. I'm surprised you didn't mention the steps on cleaning the barrel though. You mentioned running a brush down the barrel but didn't mention running patches then finalizing with a lubed bore mop. I also would like to thank you for showing us the differences in the trigger groups.

[@hahtsauce]

I use a tiny angled bronze brush and bronze dental pick for the chamber face and that little trough in between the chamber and receiver works great!

[@ryanjofre]

Your credibility has increased exponentially because your wearing gloves and put a “towel” down on your working surface! I’m gonna like and subscribe just because you wore gloves. 😂 Merry Christmas and Godspeed!

[@happyfuntimepewpew]

great tips, thank you!

[@nightfury6836]

Excellent video. Thank uou!!!

[@SuperJhuffman]

Very helpful. Glad I watched this before taking down an sp5 for first time. I prob would have damaged it putting the safety lever back in.

[@bearjtbear]

very informative. thank you

[@Y34RZERO]

Really good for me to look this up. I can clean my firearms more efficiently now. I already was cleaning magazines. I know that gets really really dirty. I love roller delay guns. I got started with a Cetme C in 308, bought a Malcomar Cetme L in 5.56, and now have my dream gun MP5K setup as the Mp5K-PDW. Wish it could be the full auto version like what my dad trained with in the army. He said said on full auto you can get all 15 rounds dead center of your target. He loved it but said it's drawback of 9mm is what made them go to having the M4 in the cockpit. in case of armored and/or drugged up enemies in the event of being shot down.

[@dougdarby3564]

Excellent video thanks I have Z5rs and I know this will help me out going forward You must have German heritage you are quite thorough

[@mtiger5]

I need me one of those cleaning kits! Pretty sweet

[@danielforrest3871]

Awesome, thank you.

[@vanderley3]

Fantastic

[@fredericksmith8813]

Thank you very informative!

[@teufelshundtactical]

My pleasure

[@1966Hemi426]

I would like to respectfully request a video on the changing of the extractor spring. You have the same attention to detail as I that is why I wish to learn from you. I’m sure others share my opinion. Thank you.

[@teufelshundtactical]

Here is one I did back when I was COO at Zenith: kzbin.info/www/bejne/rnbapZJthK92qKM

[@1966Hemi426]

Thank you very much for the video. It is exactly what I was looking for. It was straight forward and easy to follow. I love the MP5 Platform but it is quite new to me. Maintenance seems straight forward. I purchased the PTR9CT. I’m using the HK German magazines and they work flawlessly.

[@teufelshundtactical]

@@1966Hemi426 My pleasure. For more knowledge transfer consider coming to one of my Armorer Courses or one that H&K offers.

[@aircobralt]

Thanks a lot for making this video, it is very informative and useful. As for magazine disassembly (56:05) - I am pretty sure you are supposed to depress the bottom plate through that hole for a couple centimeters and hold it there - this "unlocks" the two side tabs that you can then very easily depress and remove the floor plate without scratches or damage.

[@teufelshundtactical]

Thank you. I did show and describe the need to depress the baseplate support. Even with that done, the force is still needed to force in the two side tabs.

[@aircobralt]

@@teufelshundtactical My point is you need to keep that plate depressed all the time while manipulating the tabs. I usually insert a short wooden dowel into the hole, then press the dowel+magazine down on the workbench. If you look closely through the tiny gaps between the tab window and the tab, you will see when the internal spring holding plate will have cleared the tabs. At that point a fingernail pressure is sufficient to depress the tab to get the floorplate removed. If you do not move the spring plate out of the way, you end up fighting not just those thin floorplate tabs, but a pretty chunky spring plate steel as well. My intention is not to challenge your knowledge and experience, my intention is just to add a little bit of clarification which I thought the video was missing. Thanks again for sharing your knowledge, I have learned a lot thanks to you.

[@davidgolden1726]

@@aircobralt 🎯👍

[@techdiverpratt5899]

Learn how to clean my own Mp-5✅ Actually clean it myself ❌ Mail it to the GOAT 🐐 so it’s touched by greatness ✅

[@teufelshundtactical]

That works too :)

[@mwizardm13]

Nice!

[@fjatoi]

Absolutely fantastic video! Extremely useful information. Just one question how is that attachment (Picatinny rail I’m guessing) attached on to the SD handguard?

[@teufelshundtactical]

Thanks. The rail was attached via acres through the handguard.

[@srgerhart]

I saw the cutaway MP5 in person. Mike did a great job on that thing. It was very cool.

[@teufelshundtactical]

Indeed

[@nottheomar]

Not an MP5 owner, but after watching this video - well you get the idea!

[@lcplcalifornia89]

Great video! If you depress the magazine baseplate follower, its a lot easier to press those tabs in and get the baseplate off. I usually will throw the mag in a vice with soft jaws and use that as a third hand to take it apart.. i got to clean 15 of them today for my company 😫

[@teufelshundtactical]

Absolutely correct.

[@lcplcalifornia89]

@@teufelshundtactical thank you! Im a newer Armorer with an MP5K in our inventory, so really enjoy your content and love learning about this system. Cant wait for more Armorer videos!

[@ajttambo]

Thanks

[@Judge_Dredd]

I'd never had one, stripped down a secondhand .22lr version that I got cheap due to misfires, to individual components, cleaned it, including the bolt carrier/barrel, adjusted the bolt spring for sub-sonics, reassembled it, and it works perfectly. All without a manual. Never saw one before, discovered H&K says I've voided the warranty for cleaning it properly, well duh, I'll clean it properly thanks, as it's mine and its outside the damn warranty anyway. Can't understand why stripping one of these is supposed to be so difficult, it's not, and every 500 to 1000 rounds I'll be stripping it down again properly to clean it. Tip: Makes sure you're in a clean environment to start with, in case you drop any components, AND use a Wooden Bench Vice to gently put the bolt carrier back together properly, as you really need three hands, I managed the first time with a bit of cursing, but I'll be using a vice next time. No, I'm not a gunsmith, just a Radio Amateur, and normally I prefer bolt and/or hammer actions, but I was in the TAVR about 30 years ago, so stripped FN SLR, SMG, and early SA-80s as a JNCO for personal weapon cleaning as Radio Relay Technician with the Royal Signals. Why does H&K consider people so stupid that they can't clean a weapon properly, and so store up problems to cause misfires? Absolute madness.

[@mmc81821]

Thank you so much for taking the time to walk us through all these tips and tricks! The optic mount on the sp5 looks awesome. Can you see the iron sights through the window under the red dot? What is your mounting setup there?

[@teufelshundtactical]

My pleasure. Lots of great H&K content on the channel. Yes, the optic mount is open and allows the use of the iron sights if needed.

[@mmc81821]

@@teufelshundtactical nice! What optic mount is it? Thank you for the info!

[@teufelshundtactical]

@@mmc81821 Scalarworks

[@Rapido321]

Great informational video, many thanks! What is the expected life expectancy on the Extractor Springs?

[@teufelshundtactical]

Thank, it is difficult to say for sure because of variables like type of ammo (different pressures), if it was improperly stressed during install, and if it was stressed out of spec during use by malfunctions. They should last many thousands of rounds, but you always want to do the press check I demonstrated in the video during each maintenance cycle.

[@chrisserre6854]

Hi from Switzerland. I wanted to congratulate you on your in depth and detailed videos. As a new proud owner of an automatic MP5 and an avid HK fan I have learned a lot from your instructive videos. I have a quick question? How can I tell from the serial number the year of manufacture of my MP5? Keep up the great work. Chris

[@teufelshundtactical]

Glad you have enjoyed the video. The date code is not found on the serial number, but next to the proof mark. It will be a two letter code, like AF or CD. Each letter represents a number, with A for 0, B for 1, C for 2, etc.

[@chrisserre6854]

Thank you James 👍

[@THANOS_Disciple]

Very detailed and awesome video, Thank you for making it. Where do you get the cleaning rod that connects a Chamber Face Brush to a power drill? I think that's a great idea, Thank you.

[@teufelshundtactical]

Thanks. I honestly don’t recall where I procured that rod. I’ve had it for years.

[@THANOS_Disciple]

@@teufelshundtactical Ok, I'll do some searching. That system seems to work great. I appreciate your video and quick reply. New subscriber here

[@paulbellamy196]

@@THANOS_Disciple Standard multi-segment AR cleaning rod will meet your needs. One segment has a knurled base that is perfect to put into the drill chuck.

[@aortiz1105]

This video is perfect. Thank you. I’d like to see i can have you be my guy for my MP5 maintenance and upgrades. Let me know if that’s doable.

[@teufelshundtactical]

You can reach via email through the website for service and training needs.

[@aortiz1105]

@@teufelshundtacticalwhat’s the website sir?

[@teufelshundtactical]

@@aortiz1105Look in the description

[@johnroper3077]

Heck, I feel like a fully qualified HK Armorer now!! Doesn't that mean I get an HK jacket patch now, too?

[@johnm1004]

Brilliant Invaluable. Thank you. You have seemed to avoid the topic of how to lubricate. How much and where?

[@teufelshundtactical]

Many thanks. Lubrication needs will very slightly due to your environment (lighter in desert/heavier in maritime/humid), but generally you want what is referred to as a light coat; enough to be wet to touch, but not enough to drip or pool.

[@704_thomas]

bojangles💚💪🏾

[@AggiePhil]

Skip 2000 is a solvent? Thought it was a lubricant. I use Gun Scrubber for solvent work. Then lube with Rem Oil or Slip 2000.

[@gmsixlynx136]

I would like to have a good look at the cutaway MP5 in the thumbnail. Can you post a video of that cutaway MP5?

[@locknload4875]

Just got my first HK. Been wanting a MP5 since I was a kid. 25 years later I got a SP5. Been watching all your videos trying learn as much as I can. Just started my SBR paperwork. In your opinion what’s the best way to go about 922r compliance and maintain reliability of the platform???

[@teufelshundtactical]

Congrats. Won’t discuss 922R here.

[@locknload4875]

@@teufelshundtactical Dang, just trying to get some info.

[@SanSabaSongbird]

Any tips for getting the lead deposits out of the SD port holes and around the holes as well? I use a dental pick, but is very annoying.

[@teufelshundtactical]

I use the SD cleaning brush showcased in the video. Anything that is left is easy to get with a dental pick. Applying a solvent to break down the deposits beforehand always helps.

[@MattVanLeuven]

What cleaning rod do you use? Thanks! Great vidio!

[@teufelshundtactical]

The kit I showcase in the black bag with the H&K logo, at one time, used to be available on the H&K site and includes several tools included a rod that breaks down in smaller section. The one attached to the power drill is one that my friend Phil Singleton gave me years ago. No idea where he got it.

[@edgaresquivel2147]

What do you think about after market bolt heads like Mad Max that works without an extractor spring? It supposedly is more relatable.

[@teufelshundtactical]

That design is a copy of what H&K did with the PSG1 sniper rifle and HK21 series machineguns. It is an ideal way to get around the weak point of the original design, but I have no experience with the quality of the Mad Max examples.

[@vyoufinder]

When I try to remove my bolt, it does not rotate clockwise to be able to be removed. I have the AP5, which it the type you show from SP5 (spring attached.) I tried for an hour to get the bolt to rotate off. tried turning it while pushed in, pulled out, rollers in, rollers out... Nothing seems to work. Have you any idea what I'm missing or why? I feel like if I try forcing it, that's not going to be good.

[@teufelshundtactical]

It should operate as I described. If not, I would recommend contacting Century Arms.

[@NomadicYeti]

James, regarding the internal rails where the bolt carrier rides back and forth at the 31:00 mark, after cleaning that area, do you add additional lube or grease to that internal rail area for the bolt carrier at all?

[@teufelshundtactical]

I do not add grease. I have not found it necessary. You certainly could though.

[@hahtsauce]

the tom selleck picture on the table ... hahahaha

[@seangerbick6357]

I have a Z5rs and want to order some Maintenance parts in case anything ever breaks what would you suggest I would order. I definitely want to change that bolt spring out To the braided spring. Mine is the old style that is attached

[@teufelshundtactical]

Springs are the ones that wear most.

[@LUVDOGS1954]

working with springs...wear protective eyewear

[@combattactics7789]

Preciate the videos! May I ask, where do you buy that wall art??

[@teufelshundtactical]

The framed H&K stuff in the office are either original posters that H&K offered at one time or another or custom projects I created myself. Sometimes H&K will offer posters on their webshop, but sadly they don't do much of this type of marketing anymore.

[@combattactics7789]

@@teufelshundtactical I gotcha, thank you for your time James!

[@alexanderbotonis6364]

Can you please do a video on how to replace the charging handle on an sp5? I'm making my firearm 922r compliant and cannot find any videos on how to swap out the charging handle. Thank you.

[@teufelshundtactical]

Not something I'm able to do at the moment. If you have the opportunity to attend a future MP5 Armorer Course, I highly recommend it.

[@alexanderbotonis6364]

@@teufelshundtactical Id be happy to if I get the opportunity. At the moment I am trying to make my SP5 922(r) compliant and would like to make that happen ASAP. Is swapping the charging handle relatively simple and something that an average person could do by reading instructions?

[@teufelshundtactical]

@@alexanderbotonis6364 Yep. Move the charging handle back to where you can see the roll pin through the witness hole on the top of the receiver. Drift the pin out, remove the charging handle, install the new one and reinsert the pin.

[@tengu190]

You need the Laser Devices flashlight handguard and cocking tube laser. Were they more common in Europe?

[@teufelshundtactical]

Old school stuff I used to own/be issued. But long since got rid of.

[@tengu190]

@@teufelshundtactical I didn't realize till I saw it at the range they made a flashlight grip for the MP5K. Reminds me of the laser grip for the P90.

[@leerx7015]

Can this cleaning process be applied to my HK51 as well? And is there a particular cleaning kit you would recommend for the HK51?

[@teufelshundtactical]

Yes. This video applies to all of H&K’s roller delayed weapons and the kit shown in the video is the same for all calibers except for the caliber specific rod attachments.

[@anthonyhablinski9852]

Where did you purchase your mega mat? Everywhere I checked wanted approximately 18 dollars shipping to where I live in South Texas. 😕

[@teufelshundtactical]

Ransom

[@badkarma2202]

For the price, HK should include cleaning kits. Everything HK always expensive.

[@DavidS-dj7sn]

Hi James out of all the variations of mp5. which one would have the least recoil?

[@teufelshundtactical]

The MP5SD. It's a "trick of the trade" to run the SD when teaching classes, as you look like a better shooter that you are with another example.

[@NoEdits704]

I bought a brand new SP5, cleaned and oiled it, took it out and shot 500 rounds the first day. Got home and sprayed it down with solvent, what a mess. I will absolutely be following your instruction from here on out. I have to ask, is it normal to have a ton of tiny metal pieces all inside the gun? Im coming from handguns and ARs, ive never seen so many tiny metal pieces.

[@teufelshundtactical]

I've never seen "metal pieces", but depending on the type of ammo, you can see remnants that will sometimes look like yellow or brass colored flakes.

[@NoEdits704]

@@teufelshundtactical yea that's a better way of describing it. Very tiny brass and silverflakes. It was all winchester white box, cheap range ammo.

[@NoEdits704]

@@teufelshundtactical how often do you recommend cleaning? I typically shoot P320s and MK18s, I clean them every 1k rounds or so, adding a bit of oil before each range session. The mp5 seems much dirtier.

[@teufelshundtactical]

@@NoEdits704 After every time you shoot.

[@teufelshundtactical]

@@NoEdits704 Do not shoot WWB. High probability for squib rounds that will destroy your barrel.

[@mtndewman1022]

is the material of your pick softer than the firearm's metal? are you scratching the surface every time you remove carbon?

[@teufelshundtactical]

It doesn't hurt the finish anymore than when your dentist uses it on your teeth.

[@SteelToothedFox]

Hi, could you let me know the model code for the mount on the MP5SD? I see a few low B&T types but not sure which one this is. Thanks! Great video.

[@teufelshundtactical]

I don’t recall the code. The SD in the video did not belong to me. It was in for service.

[@SteelToothedFox]

@@teufelshundtactical after digging I think it's an MFI 5.5 low mount.

[@user-qp9gq7vz1z]

Sir can you use the flute brush with the drill also?

[@teufelshundtactical]

I would refrain from that inside the barrel.

[@Thelingerer]

For the SD, what are the consequences if I just leave the suppressor permanently attached? The can isn’t serviceable anyways so what does it matter if it is carbon locked? I am considering buying one, but there is a 0% chance I am doing anything beyond lubrication between range sessions.

[@teufelshundtactical]

If that is your mindset, then the SD is not for you. The SD, as my video illustrates requires a level of maintenance unlike other suppressed weapons. Not conducting this maintenance properly will cause your suppressor to seize to your barrel and then the only way to get it off will to be to cut through the receiver, suppressor and barrel.

[@AlexGonzalez-uo4rn]

Could I swap the older recoil spring with the F model on a MKE clone?

[@teufelshundtactical]

No, the F recoil rod requires the F bolt carrier in order to fit.

[@Truthloveliberty]

So I haven’t personally put enough rounds through my SD yet, I’m curious, how many rounds do you think you could run through it before it starts to have malfunctions without any cleaning at all? I’m just curious.

[@teufelshundtactical]

It isn’t malfunctions as much as locking up the suppressor to the barrel and how much more difficult cleaning is if you shoot more than the recommendation.

[@Truthloveliberty]

@@teufelshundtactical part of the reason I made that comment is the typical end of the world scenario. What gun would you take with you that kind of deal 😂 Gotcha

[@teufelshundtactical]

@@Truthloveliberty The SD is a very niche weapon, best employed in a raid. Not the MP5 variant you want for lack of maintenance operations.

[@howboutyatn]

Where do I get the stands in the background for the grip modules?

[@teufelshundtactical]

Present Arms Inc

[@bihazard238]

Man I wish I could get an a2 stock but sadly my sp5k has a wield blocking the slots.

[@acefrm1593]

Try Safety Harbor Firearms.

[@bihazard238]

I had one but it was too small for my liking. Thanks for the suggestion though.

[@Jose-ny4lj]

Hi James, with an A2 stock installed what does the BCG stop against when it comes to the rear?

[@teufelshundtactical]

The bolt carrier can only move to the rear until the recoil spring is fully compressed. With the end cap on the A2 stock just slightly further pack, it’s beyond that reach.

[@Jose-ny4lj]

@@teufelshundtactical so the BCG stops once the recoil spring is fully compressed?

[@teufelshundtactical]

@@Jose-ny4lj The bolt carrier does not reach the rear of the A2 stock, as I explained.

[@SSS-qg7sh]

Is that a stainless steel cleaning pick or a brass one?

[@teufelshundtactical]

Stainless Steel

[@c.edwardbrice3470]

How often should we clean a SP5K?

[@teufelshundtactical]

Every time you shoot it or once a year, possibly more depending on the environmental exposure.

[@marvinheemeyerthebrodozer9986]

What are your thoughts on ultrasonic cleaners? Ive yet to buy one

[@teufelshundtactical]

I highly recommend against them.

[@paulbellamy196]

@@teufelshundtactical Please elaborate as to why?

[@teufelshundtactical]

@@paulbellamy196 They dry out the parts, removing all lubrication. Simply respraying lubrication won’t work if the weapon is not completely disassembled because it will both not get into the tight tolerance locations where lubrication is needed the most and also pool in low areas and serve to grab dirt and debris. It will also remove any painted on things like fire and safe markings. And it will make plastic and polymer items brittle and prone to breakage.

[@paulbellamy196]

@@teufelshundtactical Thanks for the prompt response. My cleaner is small, so I use it on disassembled parts: putting the dry wiped down bolt carrier, bolt, locking piece, firing pin and spring in the ultrasonic, blowing them dry afterward then relubricating all surfaces inside and out.

[@patrickryan6563]

What mount and optic setup do you have on your sp5? Does it allow use of iron sights still?

[@teufelshundtactical]

Aimpoint T2 on a Scalarworks riser and B&T base. Allows the use of the iron sights, if needed.

[@patrickryan6563]

@@teufelshundtactical thanks

[@DontComeToMyHouse]

​​@@teufelshundtactical what height is that Scalarworks riser? I see on their website it comes in three heights: 1.42, 1.57 and 1.93. Thanks!

[@teufelshundtactical]

@@DontComeToMyHouse I not recall the exact size, but just remember it being the model for the AR.

[@tomliemohn624]

Where can I get formal armorer training?

[@teufelshundtactical]

From me, of course. teufelshundtactical.com

[@user-qp9gq7vz1z]

How many rounds should you shoot before cleaning your weapon?

[@teufelshundtactical]

300-500 is the recommendation for the SD. For an unsuppressed MP5 variant I would want to do a thorough cleaning every 2000 rounds. In the absence of that, at least wipe down and lube the bolt group and inside of the receiver quickly.

[@jupiterjunk]

@Teufelshund Tactical James, What is your opinion on those "Bore Snake" cleaning pull-cords? Are there any negatives for using them on the MP5-series?

[@teufelshundtactical]

They are fine, but I prefer the rods. The rods allow you to use the tools I showcased in the video, the bore snake does not.