Crosman DPMS SBR Air Rifle Teardown and Maintenance

[@ihar9975]

Thanks for showing the close up detailed pictures at the end.

[@rustbeltairgun8718]

Glad is was helpful!

[@sund5]

Perfect video. Short and to the point. No bull shit. Young youtubers take note!!! 10/10

[@rustbeltairgun8718]

Thanks for watching!

[@coyote102076]

Thanks! That is the exact video I needed to see! I will be transporting my R1 under the seat of a 400cc scooter over 1,100 miles here in a few weeks, and knew there had to be a way to make it shorter so it would fit under the seat. :-) Taking those 2 pins "out" and separating the 2 halves will do just fine. I will be placing medical Coban wrap around each of the 2 halves to keep the parts from falling out, then wrapping all that up in a towel to keep things from getting overly scarred up.

[@rustbeltairgun8718]

Glad I could help!

[@dangerdoberman]

The more I watch videos of this, the more I want it. I like that you actually have to maintenance it like a real one. Outstanding >:0

[@rustbeltairgun8718]

Yep, technically it only requires tear down and lubrication after 3000 shots. Air guns are a lot cleaner than firearms.....no powder residue.

[@tjlastname5192]

Just got my dad one for Christmas, but as he did when we were kids, I’m going to try it out first. Haha. I’ll let you know how it goes.

[@trevorjameson3213]

@@tjlastname5192 You will like it! I just got one myself and I've been shooting it a lot. Very fun!

[@jessearruda7979]

@@tjlastname5192 next christmas you should get your dad a Gamo Swarm Whisper, 1,000 fps break barrel rifle, he can kill squirrels with any pumping, or C02, just cock the barrel once and shoot a nice big .22 pellet, easily hunt Squirrels and Rabbits. Its about the same price as the DPMS too.

[@tjlastname5192]

@@jessearruda7979 he’s already got my Umerx origin. He was going to use it to get squirrels during deer season, but I don’t think he’s that interested in squirrel hunting.

[@altereddisposition4827]

Waaay better detail then crossmans vid! Thank you kindly.

[@rustbeltairgun8718]

Thanks for watching!

[@Jmanshome]

I just got the SBR airsoft gun today and this video was very helpful so I know whag do do and how to maintain the gun for the future, I subscribed.

[@rustbeltairgun8718]

Thanks for watching!

[@smoke3d_-724]

Thank you so much! This helped me beyond just maintenance! I had a problem and this video more or less helped me save a return back to Amazon. Thanks Bud.

[@rustbeltairgun8718]

Glad it helped!

[@picklebucketboy3062]

Thanks, especially for the close-up view of where to place the chamber oil.

[@rustbeltairgun8718]

Great! Glad I could help!

[@billsteen1092]

Visualize that gun with an attachment allowing a scuba tank air hookup for a large air supply, plus an attachment that allows a 6000 count bottle of Copperhead BBs to be hooked up directly to the gun for a continuous ammo supply!

[@rustbeltairgun8718]

They have a bulk fill adapter for the Umarex Full Auto Air Guns. www.pyramydair.com/s/a/Air_Venturi_Steel_Storm_CO2_Bulk_Fill_Adapter/3442 It allows you to connect a CO2 paintball tank in place of the 12 Gram CO2 cartridges. I'm surprised they have not come out with the same for the Crosman SBR.

[@billsteen1092]

@@rustbeltairgun8718 Unless Crosman thinks they can't get around some sort of patent infringement issue, or some other legal liability they do not want to risk, I bet they come up with something!

[@iamzuijin1362]

Is pellgun oil fine to use on this? I can’t seem to find the crosman chamber oil anywhere, it seems to be out of stock, is pellgun oil safe to use on this and will it harm the BB gun? Thank you.

[@rustbeltairgun8718]

If you have reached the 3000 shot maintenance cycle, I recommend using the Crosman specified RMCOIL lube. My understanding of Pellgun oil is it is intended to lubricate the inner workings of a CO2 Powered Air Gun. That is why Crosman specifies to put a drop on the tip of each CO2 Cartridge, before insertion into the air gun.

[@iamzuijin1362]

@@rustbeltairgun8718 do you happen to know where I can find the RMCOIL? I can’t find it anywhere online sadly.

[@iamzuijin1362]

@@rustbeltairgun8718 or could you maybe provide a alternative oil?

[@rustbeltairgun8718]

I am not aware of an equivalent to the RMCOIL lube. Looks like Crosman is having supply chain issues with this product.

[@trevorjameson3213]

You don't HAVE to use that special oil. Just use the regular Crosman Pellgun Oil, it won't hurt anything. The green plunger inside of the DPMS is made of the same material as the CO2 seals, which require pell gun oil. So you're good to go with the pell gun oil. I don't know why they say to use that other stuff, it's not necessary. Just don't use firearm gun oil, or 3 in 1 oil. You may also use a silicone lubricant if you want, that's safe too. Also I wouldn't wait until 3000 shots to take it apart and lube it. I've noticed the internal plunger being dry after about 20 mags or 500 shots. So I lube mine about ever 500 shots. Wipe down the parts, and reapply the oil.

[@OfficialUro]

So I bought my thing at big five for some reason the lever was extremely loose so I open up and I released that metal thing in the stock I don’t have that

[@tjlastname5192]

Thanks for this video. Would you believe the instructions don’t show which direction that rear end of the DCG (for lack of a better word) should be facing. I pulled it a part to look, and the part fell out before I could see how it was installed.

[@rustbeltairgun8718]

Yeah, the Crosman instructions, with regard to tear down, leave a lot to be desired.

[@tjlastname5192]

@@rustbeltairgun8718 thanks again. My dad is going to love his Christmas gift.

[@kevinbosworth3]

anny pics of fire selector and firing group parts please

[@drewells717]

I’m Missing the green piece and metal piece on the bolt piece hard finding spares

[@rustbeltairgun8718]

The DPMS SBR parts list is published by Crosman here: support.crosman.com/hc/en-us/articles/360013315111-DPMS-SBR-Owner-s-Manual Once you identify the part numbers of the missing parts, contact Crosman Toll free: 800-7AIRGUN (724-7486) to see if you can order replacement parts.

[@tractordirt]

Helpful, thanks!

[@rustbeltairgun8718]

Glad this video helped!

[@11bravo13]

Video 1:15 So the back one is supposed to stay in but it came out and there is a spring . Any ideas how it goes back on?

[@Triscuit08]

your video helped me

[@rustbeltairgun8718]

Thanks for watching!

[@LOU2U2]

I followed everything 2 the t and a black spring fell out. I'm guessing I need 2 find a new video

[@rustbeltairgun8718]

Sorry my video didn't help. Have you consulted the provided DPMS SBR Manual?

[@redneckrebel9830]

I usually clean the rifle as well bc it does get pretty dirty from either paint rub off from the bolt cycling and the buffer tube assembly gets really really grimy over use. I usually lubricate slightly after cleaning up grime just to make the moving parts move more freely. Don't use actual firearms lubricant. Use this lube or pel gun oil. Don't use alot a little bit goes pretty far. I usually lubricate all rubber peaces and where there is any metal on metal or plastic on plastic. Makes the gun run smoothly and it also can increase the cycle rate of fire I've found.

[@rustbeltairgun8718]

Thanks for sharing!

[@helmhurst]

thank you

[@rustbeltairgun8718]

Thanks for watching!

[@alexmckercher3176]

Thanks, bud.

[@rustbeltairgun8718]

Thanks for watching!

[@brillranch399]

I take immaculate care of mine, I use it as a training aid to save me time and money. I've noticed that the seals get dry much sooner than 3,000 rounds. I tend to wipe everything down and lube all the seals and contact points every 2 mags (or roughly 300 shots). I had my piston seal rupture last month, got a new "action assembly" (BCG) from Crosman. Installed it December 22nd. Proceeded to use it as ordinary--never on full auto, never more than 6 shots at a time, nothing that would stress it out. Every 200-300 shots I wiped it all down, oiled it all up and continued. I got to 2,073 shots today and had my piston seal rupture again. Any idea what may be causing this? I don't use it as a toy, I use it as a training aid so it does not get over-used or abused at all--it gets treated better than my real guns. I use Crosman oil and CO2.

[@rustbeltairgun8718]

Thanks for sharing :-)

[@brillranch399]

@@rustbeltairgun8718 Thanks for the video! Do you have any idea why the piston seals might be rupturing so easily?

[@rustbeltairgun8718]

Sorry, No, I have not had this issue with either of my SBRs.

[@CrackedBlur]

probably got a bad gun then

[@brandonnn6400]

How often do you recommend cleaning the gun?

[@rustbeltairgun8718]

Internal cleaning of this air rifle is not necessary. CO2 powered air guns that shoot BBs are very clean. There are, however, recommended lubrication intervals, based on the number of shots fired. This information is included in the manual.

[@daultenhines7625]

I appreciate the video I was looking on how to oil it up and keep it working. Where do I get the lubrication for the gun?

[@rustbeltairgun8718]

Amazon Crosman Pellgunoil: amzn.to/3HiFqpD Crosman RMCOIL Silicone Chamber Oil: amzn.to/3O3LGVU

[@georgeloveless4176]

I'm a new subscriber to your channel and I really enjoy your videos. No fluff or nonsense...just straight to the point of what's important! I seen a video where you talked about your first airgun purchase in 1985. Needless to say, that's a long time ago!! How large of a collection do you have?? How many guns?? Ever consider doing a video showing off your collection??

[@rustbeltairgun8718]

Thank you for watching my videos! I have an engineering background, which probably contributes to my no-nonsense technical approach to my videos. I was in high-school in the early 80s, to me it seems like just yesterday. I have probably 30 or 40 airguns, all purchased with my own money, and will take making a collection video into consideration.

[@CooIMonkeVR]

can you remove the flash hider

[@irafowlerjr.7492]

very helpful, thanks

[@rustbeltairgun8718]

Thanks for watching!

[@MasterHaloOne]

Sweet just picked up a used one of these guns. Excellent rifle indeed

[@rustbeltairgun8718]

Enjoy!

[@SilencedRage]

Your voice reminds me of John C. Riley's voice.

[@rustbeltairgun8718]

Funny, most people say I sound like Kermit the Frog :-)

[@Isaeua]

What is the full name of the part you called the ‘bolt’ that you pulled away to remove the housing?

[@rustbeltairgun8718]

The manual just refers to it as the "Bolt". See "Maintaining Your Airgun" section. Here is the link to the manual: support.crosman.com/hc/article_attachments/360009098871/DSBR-515.pdf

[@paratrooper629]

My grandsons charging handle only go back a very short distance and then will not go all the way to the rear. Also it seems caught on something in the rear of the upper and lower and not come apart. Thoughts, ideas. HELP! THANKS!

[@rustbeltairgun8718]

Did the charging handle issue occur after a tear down?

[@robertstdon9280]

Hi you forgot the stock comes off too .

[@rustbeltairgun8718]

Yes, good point!

[@robertstdon9280]

@@rustbeltairgun8718 i do love the video. Very informative. I have this gun haven't taken apart yet .only shot a few times .i didn't like at first .i do now had to get use to it .

[@rustbeltairgun8718]

In my opinion, it is a great offering by Crosman.

[@dslife1]

Any reason why they don’t capture the front takedown pin?

[@rustbeltairgun8718]

Cost, it is cheaper to manufacture and design if both front and rear receiver pins are the same.

[@jordanmayhue3560]

I wonder if it’s possible to put a real ar upper on that lower if it will fire

[@rustbeltairgun8718]

I wouldn't recommend, as AR firearm parts are held to a higher quality standards than air gun parts.

[@goosecouple]

Nice. How to improve the crummy trigger?

[@rustbeltairgun8718]

I don't recall any issues with my SBR's trigger, can you elaborate?

[@trevorjameson3213]

​@renegadebroadcastingrenega610 Mine too, the trigger is just fine and keeps getting smoother with more use. There is nothing wrong with it, just a little heavy but no big deal, this is not a precision target rifle that needs a 1 pound trigger pull.

[@gas_chambervr6994]

Thank you so much I took mine apart by accident and something missile lined and so I couldn't get back together thank you

[@rustbeltairgun8718]

Glad I could help!

[@Brodyrobertson999]

Mines fairly new and seems to get jammed quit frequently. Any ideas on what might cause it?

[@rustbeltairgun8718]

Sorry, I did not have this problem with my two SBRs. I recommend contacting Crosman Customer Support: 1-800-724-7486

[@codypearce2287]

Thank you ha a bb jam this helped

[@rustbeltairgun8718]

Glad my video helped!

[@OleksiyMalykhin]

Is the remanufactured version for $100 and just a month of warranty worth buying?

[@rustbeltairgun8718]

In my opinion, yes, as long as it was remanufactured by Crosman and not some third party. Remanufactured air guns from the manufacturer typically have to pass more rigorous tests than brand new.

[@1300_Ytk]

Can i use a silicone lubricant for my co2 tips?

[@rustbeltairgun8718]

I recommend Pell Gun Oil, it is made specifically for this purpose and it's cheap.

[@pipugwesisaac2496]

Can you use the silicon oil for other parts of the gun or do you need pellgun oil for that?

[@rustbeltairgun8718]

Crosman RMCOIL Lube should be used on o-rings in this air rifle. Pellgun oil should only be used on the tips of the CO2 cartridges. I recommend using only Crosman's lubricants, especially if this air rifle is still under warranty.

[@zifighterz]

I just wanted to disassemble my rifle, thanks though.

[@robloxwheelies8004]

i have a issue where my charging handle is loose and it don’t chamber my bullet when a pull it back.. do you have any explanation for why this is happening?

[@rustbeltairgun8718]

If the issue occurred after following my SBR Teardown and Maintenance video, I recommend consulting the manual to make sure the bolt is properly aligned. Sorry to hear you are having problems.

[@xaviersanchez2934]

can you take off the flash hider?

[@rustbeltairgun8718]

The flash hider is removable. Either an OEM or aftermarket flash hider needs to be installed, during operation.

[@billygreer2]

Not know what I was doing I put the bbs in wrong. When I tryed to correct the problem. I total screwed the spring up. Where can I get a other spring

[@rustbeltairgun8718]

Here is a link to the parts list: support.crosman.com/hc/en-us/articles/360013315111-DPMS-SBR-Owner-s-Manual If you can identify the part from the parts list, you make be able to order directly from Crosman.

[@sddrxpz2887]

Hello i have lost the black pin that comes out when you push it and i was wondering if you knew where i could buy another one. Thanks

[@jjayala5512]

Look up AR lower receiver pin replacement. Same thing

[@SixxgunJohnny]

question, my sbr works great but yesterday i tried to install 2 new co2 bottles in the magazine, but when i went to tighten then as a have done several times before the gas just came out and did not hold a charge i cleaned the magazine with a clean rag and tried again and still the same thing happened . i didnt drop it and im the only one who has access or even uses the gun what could be the issue? and is there an adjustment on the magazine itself? i feel like the pins that go into the co2 are too far back and not seating properly. what are your thoughts ? thank you

[@rustbeltairgun8718]

You can warp the piercing gaskets in the magazine, if you leave the CO2 cartridges in, for more than 24 hours. The warped piercing gaskets will leak CO2, when new cartridges are installed. Store the magazine in a warm (room temperature) room for a day, without CO2 cartridges installed. See if the piercing gaskets return back to their normal shape.

[@SixxgunJohnny]

They didnt hold and the gas came out where do recommend i get the new gaskets ?

[@rustbeltairgun8718]

You can call Crosman support (1 [phone]) to see if they will sell you new gaskets. Most likely, you will need to replace the magazine: amzn.to/3DXBhVV

[@johnnybbgunner2136]

I add just a dab of non petroleum based gun grease to the side rails where bolt slides back and forth. I guess Crosman was correct when they say low maintenance required.

[@rustbeltairgun8718]

Thanks for sharing!

[@overlord3007]

Hello there,is that an air gun?

[@rustbeltairgun8718]

Yes, it is a CO2 powered air rifle.

[@aaronroberts8883]

I just got my DPMS SBR. Would it be best to apply the oil now or wait until I have shot 3000 BBs first? Great, simple video by the way!

[@rustbeltairgun8718]

I would wait until you have shot 3000 BBs. I do recommend putting a drop of Pell Gun oil on the tip of each CO2 cartridge, before install. The Pell Gun oil, along with the oil contained in each CO2 cartridge, will keep its internal valve and seals lubricated.

[@ImGoingSupersonic]

How often do you pull the charging handle?

[@rustbeltairgun8718]

The Charging Handle must be pulled after BB projectiles have been loaded.

[@ImGoingSupersonic]

@rustbeltairgun8718 So its good for one magazine worth of bbs, then reload and repeat?

[@ImGoingSupersonic]

@rustbeltairgun8718 So its good for one magazine worth of bbs, then reload and repeat?

[@ImGoingSupersonic]

@rustbeltairgun8718 So its good for one magazine worth of bbs, then reload and repeat?

[@pointnozzleaway]

so you don't need to wipe or clean the dirty residue away before adding oil ?

[@rustbeltairgun8718]

I suppose, air guns are pretty clean and I wouldn't expect much dirty residue, like with a firearm.

[@cameronpreston-guzman9188]

Mine seems to have jammed the hammer in to the buffer tube and I cant for the life of me figure out how to disassemble or remove. Any ideas before I try to send it back?

[@rustbeltairgun8718]

Sorry, I have not come across this issue before. I recommend reaching out to Crosman support, before sending back.

[@cameronpreston-guzman9188]

@@rustbeltairgun8718 Thank you so much for responding. It was only my 4th magazine after it arriving Wednesday, I fired 3 shots in single, flipped it to auto, 3 more shots came out and it stopped. I took the mag out and tried to clear the jam but I couldn't find it. Pulled the charging handle and it just went limp, I thought I broke something off of it. After watching yours and several other videos I realized I couldn't see the hammer. I looked down the stock and there it was, shoved way in the back. Weirdest thing.

[@kevinmac5117]

Yo is it 14mm threaded.

[@rustbeltairgun8718]

Sorry, I don't understand your question, can you be more specific?

[@kevinmac5117]

Cool. So can you unscrew the mock suppressor and put a airsoft 14mm suppressor it. Like a airsoft m4.

[@At0micVen0m_]

@@kevinmac5117 yes it is 14mm CCW threads. So you can attach any airsoft attachments

[@OscarMartinez-qu2iz]

Is there a way to remove the stock completely? Or would I damage the guns workings by cutting it off?

[@rustbeltairgun8718]

Sorry, I can't answer this question. I don't recommend cutting off the stock. Crosman does offer a more compact SBR that fits in a common backpack: amzn.to/3uCH7bt

[@trevorjameson3213]

The stock houses a couple of springs and something to do with the hammer for firing. So removing the stock would render the gun unusable.

[@Username-ld7ho]

The question is, can you put a real upper on the lower?

[@rustbeltairgun8718]

When you say "real", do you mean the DPMS SBR Firearm prototype?

[@Username-ld7ho]

Rust Belt Air Gun i mean a real ar15 upper.

[@rustbeltairgun8718]

I am not sure if the lower on the Crosman SBR is of proprietary design, or is compatible with a AR15 firearm upper. You would also need a barrel swap, the 5.56 NATO for the .177 BB.

[@goosecouple]

No.

[@robertstdon9280]

Somehow or another it probably can be done ..

[@rico.2342]

Can you attach the acetech blaster tracer to this gun?

[@rustbeltairgun8718]

I am not sure. I hope that one of my subscribers can answer this question.

[@rico.2342]

@@rustbeltairgun8718 ok thx

[@rico.2342]

@Fieldcraft Enthusiast ohh ok

[@Yatti420]

for 2020.. fresh from the box ensure speedloader screws tight.. might aswell put a drop or two pelleoil in the speedloader with BBs.. shake shake shake.. the mag can have problems see the dpms sbr mag fix. Might just do mag fix oob or after a round or two.. do the mag seal with pelle.. then gun internal seals with the rmcoil.. I'm doing that under "warranty" atleast I would think..

[@rustbeltairgun8718]

Glad your enjoying your DPMS Jared! I actually purchased a second refurbished SBR for some two fisted shooting.

[@Yatti420]

If one doesn't stop antifa.. try two!

[@boblo3513]

I recently got mine and it was starting to not feel normal. I started noticing the accuracy was a bit off and the power wasnt really there. It was also still shooting air, even when the mag would run out. I used pel gun oil and did everything in this video and I instantly felt a difference when i took the first shot. The accuracy was there. The power. And it only shot air when nothing was in the mag once. Great video 👍 And if anyone knows how to fix the issue where it keeps shooting air even when nothing is in the mag please let me know.

[@rustbeltairgun8718]

When you have this issue, did you try to reseat the magazine?

[@boblo3513]

@@rustbeltairgun8718 yes i tried, unfortunately it still shoots air even when the mag is empty

[@JakelikejakefromSF4936]

I’m currently having the same issue with mine

[@toweliefarms]

Bro my mag is stuck): I’m pressing down the button and it won’t come out

[@rustbeltairgun8718]

Let me see if I can duplicate the issue.

[@rustbeltairgun8718]

I was unable to duplicate your issue with either of my Crosman DPMS SBR Air Rifles. Why don't you remove the Upper Receiver to see if you can determine what is jamming it?

[@buddafingaz9403]

Hi, great video, thanx man. Hey, quick question, how does the supplied " Foregrip ", on the end near the barrel come off? Thanx... 👍🙏🔥💯

[@rustbeltairgun8718]

The angular fore grip can be removed with several screws, or moved up and down the bottom Picatinny rail.

[@buddafingaz9403]

@@rustbeltairgun8718 Awesome, thanks man. So all the screws inside the Angular Foregrip, or just the one that looks like a Hexkey in the middle section of the Foregrip? And, what Hexkey measurement, my friend, if you happen to know that, please & thank you? Again, your the man, & its wicked appreciated my friend, I'll continue to support the channel, good stuff.... 🔥💯👍🙏

[@rustbeltairgun8718]

Small Philips self-taping screws hold the angular Foregrip in place. Don't over tighten the screws when reinstalling, otherwise, you could strip out the holes.

[@buddafingaz9403]

@@rustbeltairgun8718 oh cool, wicked appreciate you my friend, Thanx a bunch. Yea, im waiting on my mock silencer, from EVIKE. Com, & also a vertical foregrip, as well, super psyched... Lol.. bahahahaha... Thank you for reaching out, very nice of you!! 🔥💯👍🙏

[@rustbeltairgun8718]

Very cool, can you send me the link to the Evike mock silencer?

[@juniorsantizo3271]

Hello can u plz tell me if u are able to get the mag springs because my mag spring is really week witch the bbs won’t go up to load the next bb so I have to stop and move the spring up off my mag

[@rustbeltairgun8718]

I can't answer this question, maybe Crosman support can help: 800-724-7486

[@RichDog49er]

Anybody have any barrel issues with this gun or know of a video that shows barrel replacements?

[@rustbeltairgun8718]

Sorry, I have not had this issue with my DPMS.

[@juniorsantizo3271]

If you know any website and what size the mag spring is can u plz tell me 🙏🏼

[@StratBurst92]

Excellent, you covered all the basics. Pellgunoil on the tips of the Co2 only. Upper receiver parts with silicone chamber oil.

[@rustbeltairgun8718]

Glad it helped

[@StratBurst92]

@@rustbeltairgun8718 After further research it seems that pellgunoil has a detergent additive which may lead to premature seal damage. From now on I will only be using silicone chamber oil.

[@311mikey]

@@StratBurst92 on the co2 tips?? So you use the silicone chamber oil from Crossman to lube everything?

[@xomyswag]

Can u ship me a clip for the SBR

[@rustbeltairgun8718]

Sorry, this is not what I do.

[@xomyswag]

@@rustbeltairgun8718 ok 👌🏾

[@salvadorramirez8481]

I just broke mine

[@rustbeltairgun8718]

Sorry to hear, if still under warranty period, I would call Crosman support to see of they can help (800-7AIRGUN (724-7486)). They have always been super helpful when I have called.

[@johnhawkins85]

Just got my crosman A4-p today. Loaded everything up. Fired it about 5 shots Worked great. I opened the receiver just to see how it worked then put the pin back in place with no issues. Tried gun again and it didn't work. I took the CO2 cartridge out and it was obviously still very full. Then I put in a new one and it still didn't work. Do you have any idea what might be wrong? Ugh

[@rustbeltairgun8718]

Sorry, I did not have this issue after my tear down and reassembly. I would double check assembly per the manual. In addition, make sure the magazine is properly seated.

[@JacobWhyDontYouPutOnALiLMakeup]

Just got mine and the charging handle wont pull back . Any tips how to fix?

[@rustbeltairgun8718]

Sorry, I did not have this problem with my SBR. Crosman Customer Service has always been super helpful when I had issues. I recommend calling: 1 [phone]