Ruger MKIV and 22/45 Magazine Disconnect Replacement | TANDEMKROSS "Blast Shield"

[@shadowcaster504]

Thank you so much for these videos. I just installed yet another "Blast Shield", this time into my newly acquired Mark IV Hunter. Keep up the good work. Cheers!

[@TANDEMKROSS]

Glad to help!

[@evoltnvii]

Installed it today but because im an idiot i kept pushing the hammer too far back causing me to have to pull it all apart over again several times until i watched your very well done video more closely and caught what i was doing wrong. Part works perfectly as advertised and install was not horrible except for my mistakes. Thanks again for another great product ill be ordering more parts soon.

[@TANDEMKROSS]

Glad you got it installed, Dave! Thanks so much for trusting our parts in your gun :)

[@lances4803]

For those doing the install, I recommend bright lights. I ended up using a headlamp to see down into the frame to secure the sear.

[@Reverenddelzao]

Thank ya' kindly, I did use your advice, VERY helpful!

[@alantalbot3525]

Excellent “How To” installation video...I installed my “Blast Shield” last week before the video was posted and had no problem....it works as advertised and makes a good pistol into a great 👍 pistol...Thanks tandemkross!

[@TANDEMKROSS]

Thanks Alan! Glad to hear you got yours installed without any issues :) Thank you for your business

[@TANDEMKROSS]

@JASON VOORHEES Correct, that spring doesn't go back in.

[@markpingleton349]

Just installed on my 22-45! Easy peasy install! Thanks for the precise instructions!

[@chechatonga9502]

took me a little longer than the instructions...but the instructions are excellent...and it was done in about 45 minutes... Guess I am a tard....but works great .... highly recommend this part

[@devo1785]

Once I got the allen wrench to hold the sear under spring tension upright this was a breeze. I fiddled with that for a good 10 minutes as I was not getting it to rest on the outside wall of the back of the mag-well. Great video very happy. Thought I had missed something when I had the one spring left over after assembly, but it functions great!

[@teng029]

great instructional video as usual. that said, can you invest in an HD camera? there really is no reason for non-HD videos to exist anymore. 👍

[@Reverenddelzao]

If you're having issues with the "Sear under spring tension upright"? Use an empty magazine. I struggled for a LONG while, then realized "Wayment, hollup". Tilt the Sear ALL the way straight, insert the empty mag, the mag body holds it perfect. 4 minutes later, in place, and functioning fine.

[@J.R.F.23]

Thank you for another great installation video. I had to watch a few videos due to mix and matching parts. It was very helpful and well done.

[@TANDEMKROSS]

So glad we could be helpful! Thanks for watching :)

[@rmax2]

Got mine installed this evening, easy install and works as it should. Very good video instruction! :)

[@TANDEMKROSS]

We are glad! thank you!!

[@joekelly4]

Great vid. So detailed. Had some issues trapping the sear. Finally got it. Thank you so much. I am a true novice with this. Took me less than 30 min to do it. If I can do it you can too. Thx again tandemkross. Will test this new functionality soon.

[@TANDEMKROSS]

Thanks for watching and for the feedback, Joe! So glad you found this helpful. We appreciate your business.

[@rickymo76]

Man that was kinda a pain to install. Mainly because I didn't realize the trigger spring had fallen out in the process but works great now.

[@tyler90561]

these videos rock and make your product so much better thanks

[@TANDEMKROSS]

Thank you!

[@MrAlanml]

Great video, very clear and good info. A question though: the factory mag disconnect looks remarkably similar to the Blast Shield, except for the curly tail. So I assume the curly bit is the bit that actually disconnects the mag. So why can't you just cut off the curly bit?

[@Dr_Mauser]

Just did mine. A 5/32" punch can also be used to align the hammer and safety. I do notice two spots right away on top of the blast shield that are getting bit by the hammer, although that's probably because the bolt isn't stopping the hammer, so don't dry-fire without the barrel on too often.... I too was a bit concerned about the lack of a spring to hold it down in position. This is also a good time to install the right side safety lever delete washer if you want to go that way. Nice little accessory. I'm opposed to mag safeties. Any control I can't manipulate that keeps the gun from going off when I want it to is a bad thing.

[@TANDEMKROSS]

Yeah, you'll want to use your thumb or something to stop the hammer from slamming all the way forward in the event you need to dry fire it with the barrel off. I'm glad you like it though!

[@Dr_Mauser]

@@TANDEMKROSS Heh, wish you'd said that before. Ah well, :-) Was it your video about tuning up the mags? Already did one, we shall see how it runs. I have one more on hand and four on order (Optics Planet had a sale on two-packs, and free shipping on over $49, so I ended up with more than I planned on....)

[@Dr_Mauser]

@@TANDEMKROSS Actually, the only problem I had doing the install was the first time the toggle on the hammer that goes into the hammer spring missed. So folks need to make sure the little black thing on the Hammer goes into the little dished out spot.

[@paulammann6740]

If you already have the Victory trigger installed, recommend backing out the overtravel screw all the way. Otherwise once you swap these parts you might have a dead trigger and think you installed it wrong. Ask me how I know. Took this damn thing apart 5 times until I realized what was going on....

[@jameshighley9919]

I installed the trigger, adjusted it. Then installed the new sear and hammer. I had the same result. Took it apart several times thinking I installed something in correctly. Watched the video about 10 times. Finally took all the adjustment out of trigger to get it working. I wish I would have installed the sear and hammer 1st. Then the trigger.😢

[@pcormackx]

It looks like you left out the trigger pin retaining spring? Why is that?

[@H2OSensei]

I'd like to know the answer to this, as well.

[@marcoss6212]

@@H2OSensei I'm guessing is not needed, think is the reason for it to go back in and disconnect the mag, without it, runs open, guessing here :).

[@H2OSensei]

@JASON VOORHEES You don't need it. It was part of the old system. This is a good product and was easy to install

[@afhostie]

Comparing the old and new connectors, there's no cutout for the spring so I'm guessing it's intentional.

[@poulpou]

Thank you. Works well.

[@robertqueen317]

What purpose does a magazine safety serve?

[@danielsantos7862]

Is the magazine disconnect system exactly the same in all ruger mark IV's I wanna get a mark IV hunter and remove the magazine disconnect, would that be the exact same process for all Mark IV's despite the different models ?

[@TANDEMKROSS]

Yes. There are some slight differences between the internals of Mark IVs and Mark IV 22/45s, but all Mark IVs have the same internals, and the mag disconnect (and the process for removing and replacing it) is pretty much identical across all Mark IVs and Mark IV 22/45s.

[@Silversnapdragon]

Will this help prevent debris and powder from getting into the hammer area with a suppressor? They tend to make a tremendous mess, and if this will prevent that I may just have to buy one.

[@TANDEMKROSS]

It sure does! It blocks a lot of mess inside and also keeps your magazine aligned for reliable feeding!

[@Silversnapdragon]

@@TANDEMKROSS thank you very much!!! I will have to buy one.

[@emmanuelgoldstein4371]

I just had to get rid of the magazine safety. I put in a Volquartsen kit which replaced the hammer, trigger, sear, bushing and disconnector. The Volquartsen trigger is adjustable. My gun is a MK IV 22/45 Tactical model. It was also a recalled gun which I sent the frame back to Ruger to replace the safety. After putting in the Volquartsen kit, the new safety rattled around alot. Volquartsen sent me a shim which took care of most of the rattle. So, my question is, Will the Blast Shield be compatible with the Volquartsen kit and the model of Ruger that I have ? Also, I found that when tightening up the left side upper grip screw, check to see if the bolt catch lever moves freely. I snugged my grip screw just a little too tight causing the bolt catch lever to bind and was sluggish.

[@TANDEMKROSS]

Hi Emmanuel, the Blast Shield will not work with the Volquartsen hammer - it is only compatible with the factory hammer. The VQ hammer and bushing work together to remove the magazine disconnect, so if you're using both of those products then you don't need the Blast Shield. The Blast Shield is compatible with the VQ sear, trigger and disconnector, but you would have to use the factory hammer in order to use the Blast Shield. Let us know if you have any other questions!

[@nickderidder4128]

can you do the titan extended mag release installation please

[@TANDEMKROSS]

We'll add that to our list, Nick! In the meantime, you can check out this video for the SW22 version (the installation is essentially the same): kzbin.info/www/bejne/q6q5fJ-drNqGgNE and you can find printed instructions on our website here: www.tandemkross.com/assets/images/Instructions/22-45%20-Titan-%20Extended%20Magazine%20Release%20Instructions.pdf

[@fredmillard5018]

Not sure why one would want to make this modification. What is tge advantage over stock?

[@judywhitley6193]

I have a Mk iii Lite that I really like except for the take down. Looking at the MK iv Lite but it takes both hands to use the bolt release. Is there a fix for that?

[@tracyhaynes5404]

It's a stamped part with rough edges. A bit of work with an Arkansas stone can make a big improvement

[@Candyvyorn_]

Why would you want to be able to fire without the mag in though?? What’s the use

[@militantfascade9176]

You might want to de-cock for cleaning or storage. Having a magazine disconnect means that you absolutely HAVE to put a magazine into the gun to de-cock it. This increases the chances of putting the wrong mag in the gun, possibly with ammo in it. Best practice is not have ammo or mags near your work area. Another reason (not exactly applicable to this gun, but more for a duty or defensive gun) would be if you are changing mags and need to be able to fire the round in the chamber, say if someone or something (dog, other animal) attacks you during a reload. That one round could save your life or someone else's if it isn't locked away. Magazine safeties also introduce a risk that debris or broken parts prevents the gun from firing even with a mag in the magwell, if the mag disconnect gets jammed or bent.

[@morte8212]

Thanks, this video help!

[@TANDEMKROSS]

No problem!

[@MrTwotee]

What was the spring lying on the table after the Installation? Is it not needed with the blast Shield installed?

[@TANDEMKROSS]

It's part of the stock magazine disconnect mechanism. It's not not necessary with a "Blast Shield" installed.

[@FitzgeraldDeclan]

Hi just wondering can you help me I want to know would the blast shield fit over the vloqurtsen target hammer for the Ruger Mark IV

[@TANDEMKROSS]

The "Blast Shield" will work with the Volquartsen sear and disconnector but will only work with the factory hammer.

[@jasonmane8847]

Will this remove the rattle from factory at the safety plate ?

[@micahwest5347]

Awesome products as always and great install video. But calling this a drop in is lol.

[@TANDEMKROSS]

Thanks for the feedback! When we say "drop in" it's usually more to mean that no machining or drilling or specialized gear/skill is required. Some of our products, like the Buckmark Gearbox, really do *just* drop right in. But yeah this one is a little more complicated than that.

[@jamesbroughton7870]

Will this affect the trigger pull at all? Someone said it would be smoother with the magazine disconnect removed.

[@TANDEMKROSS]

Some customers have said the trigger feels better with the "Blast Shield" installed. However, it won't make the trigger pull weight any lighter.

[@NoFailureAllowed]

What is this for? What is the advantages of having a blast shield? Why would one want to be able to fire a round without a magazine in it?

[@TANDEMKROSS]

Thanks for your interest! Removing the magazine disconnect can actually improve firearm safety by making the trigger function the same way regardless of the magazine condition. This can help ensure the user (even new shooters) remembers to keep their finger off the trigger unless ready to shoot, and can help prevent an unexpected trigger pull by inserting a magazine with a finger on the trigger. Some users have also found that the gun simply functions better overall without this feature, and the "shield" feature of the Blast Shield protects the sear and hammer from debris, which keeps them running better for longer. Hope that helps answer your question. Don't hesitate to reach out if you'd like any other information.

[@wesbrash74]

Easier to reassemble without the magazine disconnect.

[@dendrzewiecki9170]

Will this in anyway void factory warranty???

[@NemoVir]

DeN Drzewiecki No, it doesn’t, but it’s rumored that if Ruger finds any after market parts. They will replace those parts and you may or may not get them back. It’s best to keep the original parts and replace if you need to send in for warranty work.

[@TheHaelix]

After about 10 tries i found my problem i was over cocking the hammer. Other than that it was pretty simple.

[@TANDEMKROSS]

Glad you got the issue sorted out, Matt! Thanks for watching.

[@rickcarlton5142]

What is a "sound wrench"??

[@TANDEMKROSS]

Hi Rick, thanks for the question. He is saying "allen wrench" throughout the video - let us know if you have any more questions!

[@manfredmuller5080]

A weapon with a magazine disconnect is (at critical times) nothing but a paperweight. Thanks for the blast shield, very clear video instructions, lets go to the range and use it as a paper puncher......

[@mzombie2]

Install was fine and everything seems to function afterward, will take it to the range tomorrow for a full function check. The blast shield was just a bit stiff rotating around the hammer even with a bit of oil. Seems ok but just not as free moving as the old safety disconnect. Is that to be expected?

[@mzombie2]

500 rounds later no failure to feed, gonna say stiffness isn’t an issue

[@TANDEMKROSS]

Glad to hear it, Micah! It can be a little tight but shouldn't impede function, so glad to hear that was your experience. The width of the hammers can vary. If it ever becomes an issue or does not function we can modify one and send it. Thanks for your business!

[@ronthegunman5724]

Nice 👌

[@andrestopelberg8614]

May I order that item from abroad?

[@TANDEMKROSS]

It depends on what country you're ordering from. We can ship to the UK, Canada, and Australia. If you're outside those countries, Brownells EU has many of our parts, and Gibraltar Arms may also be able to specially order our parts for you.

[@andrestopelberg8614]

TANDEMKROSS Ok. Thank you. I’m getting a new Ruger Mark IV Hunter in Chile. I hope to be able to find the Blast Shield. All my guns don’t have the magazine disconnect feature or have had them removed, but in all of them I’ve had only to remove a part, without replacing it. This isn’t the case...

[@MikeS309]

@@andrestopelberg8614 I might be a little late here...but another method involves just moving the mag disconnect spring to the opposite side of the disconnect itself. Terrible explanation, but there are some other videos on KZbin that show how to do it.

[@CodytheFordGuy]

what grips did that have on it? thanks!

[@TANDEMKROSS]

Hi Cody, the grips we have in the range footage are our "hiveGrips" -- they're currently under development and will be released in the next couple months! Stay tuned :)

[@CodytheFordGuy]

Cool thanks! Looking forward to those!

[@TANDEMKROSS]

You're very welcome!

[@TheHaelix]

First mag threw it functioned properly until the end my slide would not return forward even with the mag ejected. I had to remove the upper from the lower.

[@patrickkennedy5227]

If you could pick up a blast shield as tandem Kross do no sell them in Australia

[@vcupiano]

Better yet buy the Volquarsten trigger accurizing kit. No offense to Tandemkross, I’ve bought your products as well over the years.

[@polecattgenetics3187]

I hope nobody at "Tiger Kings Zoo" knew this little trick.

[@PerfectTyler]

Maybe consider editing out the drinking sounds around 2:20?

[@BeechSportBill]

The 22/45 Light is ILLEGAL in Washington State because of the threaded barrel

[@TheJennflip]

What's with leaving the spring out????

[@akaTheDevil]

Can't hear you

[@gunsandguitars6678]

another detent fell out of the freaking gun don't know where it came from. anybody.

[@Hafellafuse]

Great product but WHY IN THE WORLD is the quality of this video so dreadfully awful? Max quality is 480p? Really? High definition matters so your viewers can clearly see what you're doing. This needs to be re-done.

[@TANDEMKROSS]

Hi there, thanks for watching and for the feedback. We're not having any quality issues on our end, but we'll investigate!

[@Hafellafuse]

@@TANDEMKROSS Thank you for the response to my comment. I just checked again and the maximum quality setting is 480p. 1080p quality was standard at time of filming in Feb2018. I've certainly seen worse quality elsewhere but we expect more from TandemKross, esp since your bring us such high quality parts. It may be worth the cost to hire a videographer to help with your future install vids. Thanks again.

[@TANDEMKROSS]

@@Hafellafuse Hi there, I'm assuming that was some kind of error on this video. Appreciate the heads up! We have a great video manager in-house who does our videos, this was likely a simple mistake. Thanks again for watching.

[@bobkeller8383]

I was ok until the damn gun exploded! :(