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11 Best Roller-Delayed Subguns & Rifles of 2023

Ready to dive into the world of roller-delayed blowback systems? We've got the low down on what these guns are and which are the coolest.

    Of all modern firearm actions, probably none is as mysterious as the roller-delayed blowback.

    Yes, we’ve heard of it, and yes, it’s good, but…why?

    PSA MP5
    Palmetto State Armory’s MP5 clone sports a roller-delayed system.

    I’m so glad you asked.

    Today, we’re going to demystify the roller-delayed blowback action.

    We’ll go over how exactly this action works and why it’s so desirable.

    MP5 Die Hard
    You’ll be spraying and praying by the end like McClaine…assuming you can afford one of these bad boys.

    Then we’ll look at some of the more interesting roller-delayed guns currently available in case you want to pick up one for yourself.

    Let’s get to it!

    Summary of Our Top Picks

    1. Best Lightweight Option

      Angstadt Arms MDP-9

      3.6 pounds, super compact, and easy to tote the range. It also takes Glock mags so spares are easy to come by.

    2. Editor's Pick

      Grand Power Stribog SP9A3

      Budget-friendly, fun to shoot, and rails/M-LOK to add accessories.

    3. Best Vintage Option

      Century Arms CETME Sporter

      If you want something close to the OG, this is it. It's got that classic look and is a lot of fun.

    4. Best G3 Clone

      Heckler & Koch SR9

      Pretty close to the original G3 and the best civilian option if you want that G3 vibe.

    5. Most Affordable

      Century Arms C308

      At around $1K, this is the cheapest option for roller delayed

    6. Best MP5 Clone

      Heckler & Kock SP5

      Closest thing you can get to the MP5 without it being the MP5, it's pricey but true to the design

    7. Best High End

      Dakota Tactical D54

      Great fit and feel, lots of options, but pricey

    Table of Contents


    Direct Blowback vs. Roller-Delayed

    First, to understand roller-delayed blowback guns, we need to talk about plain ole, normal direct blowback guns.

    In a direct blowback firearm, you have a heavy bolt and usually an equally hefty spring that keeps the chamber sealed after firing.

    The spring keeps the bolt forward and the chamber sealed when the gun is in battery and ready to fire, and for a short amount of time after firing.

    After the round fires, the pressure in the chamber increases while the round moves down the barrel.

    Eventually, that pressure is enough that the bolt moves back, and the chamber opens.

    This ejects the spent cartridge as the bolt moves to the rear.

    At which point, the spring pushes the bolt back forward, where it scoops another round off the top of your magazine and chambers it, allowing the process to be repeated.

    Benefits of Direct Blowback

    This is one of the simplest self-loading actions we humans have devised, and it’s also one of the cheapest.


    Direct blowback is easy to make work, and there are relatively few moving parts, making it fairly reliable as well, especially if you have a dirty gun.

    It does have its downsides, though.

    Cons to Direct Blowback

    For one, the heavy bolt presents an issue.

    We don’t like reciprocating mass in our firearms because that moving mass causes things like recoil and muzzle flip.

    Best AR-15 BCGs
    Best AR-15 BCGs

    Many people, particularly those focused on accuracy like competition shooters, prefer lighter buffers in their AR-15s, or lightened slides on their handguns for this reason.

    Less mass moving back and forth means less recoil.

    If you have a heavy bolt and an equivalently high-powered spring moving around, this can make recoil more difficult to manage.

    Beyond that, the weight of that bolt and spring are very finely calibrated, and modifying your gun can throw things out of whack.

    AR15 Buffer Spring
    AR-15 buffer spring.

    It can do weird things like increase the cyclic rate of full-auto firearms and port pop — that loud pop you get from the ejection port with a suppressor. That sort of defeats the purpose of the suppressor, am I right?

    This all happens because a longer barrel or an added suppressor increases that all-important chamber pressure and causes the bolt to unlock further along the pressure curve.

    Thus, giving you that pop of escaping gas.

    Roller-Delayed Blowback

    Introducing a roller delay to this system fixes many of these issues.

    When you chamber a round in a roller-delayed blowback, the bolt head picks it up and chambers it like normal.

    Then, the bolt carrier spring pushes on a special locking piece, which forces two round rollers on the bolt head into a special space in the receiver called the trunnion.

    HK MP5 Roller Delayed Blowback System Patent Drawing
    HK MP5 Roller Delayed Blowback System Patent Drawing submitted by Theodor Koch in 1964 to the U.S. Patent Office. (Photo: Wiki Commons)

    Now, our bolt is locked closed because of the bolt carrier spring holding the locking piece forward, which holds the two rollers in place.

    The action will stay like this as long as the chamber pressure is low.

    The actual recoil spring isn’t really doing a whole lot at this point.

    Recoil spring just hanging out like…

    Once you fire off a round, a lot of things are going to happen very, very fast. Like, “faster than a speeding bullet” fast.

    First, the round begins moving down the barrel, which causes pressure to begin building in the chamber.

    Faster Than Speeding Bullet
    When things start moving…they start moving real fast

    Eventually, that mounting pressure reaches such a level that the bolt is going to want to move to the rear. This puts pressure on the rollers.

    The rollers then squeeze together against the angled head of the locking piece and come out of their little pockets in the trunnion.

    Because of the delay caused by the rollers, the chamber pressure begins to drop. It drops much more gradually compared to the sharp peak and drops you get with a standard blowback action.

    Roller Delayed Blowback
    Roller Delayed Blowback

    Once the pressure is great enough to move the bolt, you still have a little bit of time while the rollers disengage.

    At this point, the bolt head is unlocked from its position. Nothing holds it in place except the recoil spring.

    A roller-delayed spring is much less powerful than the one you’d need in an equivalent direct-blowback firearm.

    The bolt then travels to the rear, ejects the cartridge, and the bullet goes off to hit your target exactly where you were aiming. Then the recoil spring pushes the bolt carrier back forward to resume the process all over again.

    Roller-Delayed Advantages

    There are some serious advantages to doing things this way.

    First, you have less reciprocating mass inside the gun, and it’s moving at a much lower velocity.

    As we discussed before, this means you have less felt recoil and muzzle flip — never a bad thing.

    Good thing

    Next, you’ll have a much easier time suppressing a gun with this style of action.

    The MP5 is probably the poster child of the roller-delayed blowback action.

    It’s hard to find a gun that suppresses better than that, particularly in terms of performance on the shooter’s end.

    HK MP5
    Read our historical look into the MP5 here!

    Because you’re opening the chamber at much lower pressure levels, you get no port pop. That means no pain in your delicate little ears and less chance of a living target being able to triangulate what exactly is going on.

    This is great for both tactical shooters and hunters alike.

    We said tactical not tactiCOOL.

    Finally, since there’s no gas system, there’s also no gas to be blown back into your face.

    Anyone who has ever fired a poorly-tuned suppressed gun will tell you it’s precisely zero fun at all.

    Hot carbon and expanding super-heated ignition gases are really not great for your eyeballs, let me tell you.

    Roller-Delayed Issues

    So why isn’t every gun a roller-delayed blowback these days? Excellent question.

    The simple answer is a direct blowback gas system tends to work better for rifle cartridges.

    Assorted 7.62x51mm (MEN 147gr, PPU 165gr, PPU 180gr, Gold Medal 168gr
    Assorted 7.62x51mm (MEN 147gr, PPU 165gr, PPU 180gr, Gold Medal 168gr)

    With roller-delayed blowback, you ditch any adjustability.

    Since there is no gas system, you can’t fiddle with things as much as you can in a direct blowback gas system.

    PSA AR-15 Pistol Uppers vs Mid-Length Gas System
    PSA AR-15 Pistol Uppers vs Mid-Length Gas System

    In other words, any changes in ammo, barrel length, or the addition or removal of a suppressor changes the cyclic rate and lock time of your gun. Adversely, this leads to some major reliability issues you can’t really compensate for.

    So, rollies are pickier on ammo.

    You can change out the locking piece for one with a differently angled head. But that’s something you need a workbench to do.

    KT Sub-2000 On the Gun Bench
    Clear the KT Sub-2000 and use the gun bench for a rollie!

    Ideally, you want an experienced armorer to handle that process.

    Yes, it can be done by a determined person armed with the right tools and access to YouTube. But do you want to risk messing something up?

    Mistakes were made

    The other issue you have is that the roller and the locking piece can and will wear down, which will require replacement much sooner. At least sooner than you’re likely to replace anything on an AR-15.

    Once those pieces start to wear, you’ll need more chamber pressure to actually disengage the locking piece.

    That said, roller-delayed guns are pretty cool, not to mention iconic in pop culture.

    MP5 Maglite Thatcher
    I mean, Thatcher’s cool with them so…

    Roller Locked vs. Roller-Delayed

    Before we unleash some of the best roller-delayed models upon you, it’s worth mentioning that “roller locked” is sometimes mistakenly used in place of roller-delayed.

    In reality, these are two different systems.

    Not the Same

    Again, roller-delayed systems simply delay the opening of the bolt.

    On the other hand, roller-locked systems lock the bolt to the barrel/extension. As such, these systems rely on recoil or a gas piston to unlock and cycle the action.

    MG42 National Interest
    The MG42 is an example of a roller-locked gun. (Photo: National Interest)

    A good example of a roller-locked model is the MG42 and Czech vz.52 pistol.

    Best Roller-Delayed Blowback Guns

    Now that we’ve talked a little about how these guns work, as well as some pros and cons, let’s look at the guns themselves.

    So, there aren’t a ton of rollies out there. But some iconic roller-delayed blowback options do exist on the market.

    1. Angstadt Arms MDP-9

    Announced in January 2020, the Angstadt Arms MDP-9 is a lightweight, compact roller-delayed option.

    Angstadt Arms MP9
    Angstadt Arms MDP9

    It’s chambered in 9mm and measures 14 inches in overall length, and weighs just 3.6 pounds.

    The MDP-9 is a compact model that can easily slip into a backpack or sling bag for easy toting to the range. It features last round bolt hold open and an extended mag release to make mag changes a bit easier.

    Best Lightweight Option
    at Palmetto State Armory

    Prices accurate at time of writing

    Prices accurate at time of writing

    Available Coupons

    Even better, the MDP-9 runs on Glock 9mm double-stack mags. We love that feature because it keeps overall costs down and gives you plenty of spare mags.

    at Gun Mag Warehouse

    Prices accurate at time of writing

    Prices accurate at time of writing

    Available Coupons

    2. Grand Power Stribog SP9 A3S

    If you want to get into roller-delayed without totally going broke, Grand Power offers a decent option at an affordable price.

    4. Grand Power Stribog SP9A3S
    Grand Power Stribog SP9A3S

    The Stribog SP9 A3S is a roller-delayed 9mm that is decently reliable, accurate, and small enough to stick in a backpack for range day.

    This model is very subgun-like and clearly takes cues from HK’s MP5. Controls are ambidextrous, meaning lefties can get in on the fun too.

    Available Coupons

    The SP9 A3S feels pretty sturdy in hand and pairs a polymer lower with an aluminum upper.

    A Picatinny rail runs the length of the top and a small portion under the barrel. M-LOK slots can also be found on this gun, so go crazy mounting what you want.

    A 30-round capacity means you got plenty of rounds to plink, and you’ll have a blast doing so. The SP9 A3S is fun!

    You can see more on the SP9 in our video review below or read the article itself.

    3. StG45

    Okay, so this one isn’t exactly in production anymore, but we’d be remiss to not mention it…especially since this is the model the roller-delayed blowback action that was originally developed for.

    Sturmgewehr 45 with a 30-round magazine inserted. (Photo: Wiki Commons)

    As U.S. and Allied forces began to forcefully wind down the German Wehrmacht’s ability to continue the war effort towards the end of WWII, several German engineers — many of them forced to work against their will — worked on new firearm designs.

    One of the last of these was the StG45, developed by Mauser.

    This rifle, firing the 7.92x33mm Kurz cartridge, included the roller-delayed blowback design for the first time. The original patent by Mauser’s Wilhelm Stähle and Ludwig Vorgrimler specifically reference it.

    It’s very much out of production these days, so if you happen to find one of the 50 or so rifles that were ever produced, hang on to it.

    It’s worth something.

    BUT…PSA announced at SHOT Show 2023 that they will soon be releasing their own version of the STG-45’s sibling, the STG-44.

    You can check out our Instagram post about it below or read more in the Best Guns of Shot Show 2023.

    4. CETME Model 58 Rifle and CETME Sporter

    After the war, Ludwig Vorgrimler went on to develop several other firearms, including the now-famous Spanish CETME Model 58 — also called the CETME Rifle.

    CETME is short for Centro de Estudios Tecnicos de Materiales Especiales, a Spanish arms manufacturer.

    Spanish Soldier CETME
    Spanish soldier holding sailor with CETME 58 Model C.(Photo: PH2 Milton R. Savage)

    This design is, perhaps unsurprisingly, based heavily on the StG45 that Vorgrimler worked on previously.

    However, the CETME incorporates several key upgrades and changes, including a fluted chamber design that helped prevent cases from becoming stuck.

    This 7.62x51mm NATO battle rifle was originally chambered for the 7.92x41mm CETME cartridge.

    Some 7.62x51mm Rounds
    Some 7.62x51mm rounds

    Today, you can most commonly find the CETME in the U.S. through Century Arms International in the form of the CETME Sporter.

    This model is a civilian version made in the U.S. and is a decent option for a vintage battle rifle in the iconic H&K G3 format.

    Best Vintage Option
    at Guns.com

    Prices accurate at time of writing

    Prices accurate at time of writing

    Available Coupons

    5. Heckler & Koch G3

    Speaking of, the H&K G3 and all its many clones, copies, and homages is essentially an upgraded version of the CETME rifle.

    HK G3
    Original G3 variant with older style flip-up sights and wooden furniture. (Photo: Wiki Commons)

    The H&K G3’s locking piece has been tweaked a little for extra reliability, and there are some differences in furniture.

    Really, that’s all the difference, but sometimes that’s all it takes.

    G3 Schematic
    G3 Schematic

    It comes chambered in 7.62x51mm.

    Today, the rifle is still in production. It’s spawned a huge number of derivatives, some of which are civilian-legal here in the U.S.

    For instance, the SR9 is the sporty U.S. version of the G3.

    HK SR9T
    HK SR9T

    Meanwhile, the HK91 boasts a semi-auto design made to be U.S. compliant.

    Prepare for some sticker shock, though. The SR9 retails for around $6,000.

    Best G3 Clone
    at Guns.com

    Prices accurate at time of writing

    Prices accurate at time of writing

    Available Coupons

    6. Century C308

    The Century C308 is the cheapest way, short of committing theft, to get your hands on an H&K G3 clone. (Also, stealing is bad, so, yeah, don’t do that.)

    Technically it’s a clone of the CETME Model C manufactured by Century.

    Chambered in 7.62x51mm, the C308 uses an 18-inch barrel. And it accepts both G3 and CETME mags.

    Bonus, you get two 20-rounders with the rifle, so that’s nice.

    TTAG Century Arms C308
    (Photo: The Truth About Guns)

    Using both new U.S.-made parts as well as older CETME original bits and pieces, you can find the C308 in the States.   

    It’s a solid rifle and a great budget choice at around $840.

    Most Affordable
    at Guns.com

    Prices accurate at time of writing

    Prices accurate at time of writing

    Available Coupons

    7. Heckler & Koch 91

    The H&K 91 is a semi-automatic version of the iconic H&K G3 still in use today.

    All internal parts that allow full-automatic fire are removed. It also has a flange welded in place to prevent an automatic trigger pack.

    This addition rendered the paddle-style magazine release non-functional. So, the magazine release was moved to the right side of the mag well.

    HK 91
    HK 91 (Photo: Rock Island Auction)

    Other than that, it’s absolutely identical to the HK G3A3 — the most iconic G3 variant that began production in 1963.

    The one problem: import of this rifle stopped in 1989.

    So, there are a little less than 50,000 of them in the US. That’s all!

    This makes them…pricey, to say the least.

    Bridesmaids Poor

    Still, if you’ve got the cash, this is a truly excellent rifle that won’t let you down.

    And it’s the best way to get a true G3 here in the U.S.

    8. PTR 91

    If you want to spend slightly less cash and get something that’s nearly as good, check out the PTR 91.

    This rifle is a semi-automatic copy of the original G3 design. It uses some original G3 tooling from the FMP arms factory in Portugal.

    PTR 91 Wood Chassis
    PTR 91 Wood Chassis (Photo: Guns America)

    It measures 40.5 inches in overall length and weighs 9.5 pounds. With this model, you get either a 10-round or 20-round mag.

    The PTR 91 is much higher quality than the Century C308. Hands down, it’s definitely the best clone of the G3 line out there.

    So, this is the route we recommend if you aren’t quite prepared to shell out a few thousand for an original HK91.

    at Guns.com

    Prices accurate at time of writing

    Prices accurate at time of writing

    Available Coupons

    And yes, we realize the CETME, C308, SR9, and PTR 91 are basically kinda the same but cut us some slack here. A list with only a few guns would just be boring.


    9. Heckler & Koch MP5

    Next, the most recognizable roller-delayed blowback gun of them all…the H&K MP5.

    The MP5 has seen use all over the world, particularly in the West. It’s also been used by everyone from James Bond to the U.S. Secret Service.

    H&K MP5

    Sporting a 9mm SMG design, it accepts double-stack magazines and makes an ideal suppressor host.

    This alone spawned the almost-as-iconic MP5SD, an integrally suppressed version.

    HK MP5 SD Ad

    The MP5 also yielded the UMP. But as anyone who has ever handled this variant — or played Escape from Tarkov, Call of Duty Warzone, or any of the Rainbow Six games — can tell you, the UMP doesn’t quite measure up to the original.

    Oh, and if you want one, good luck.

    London Police HK MP5
    A police officer guards the entrance to Downing Street, London, home of the UK Prime Minister. (Photo: Wiki Commons)

    Transferable MP5s cost new car money and are rarer than hen’s teeth these days.

    Patience, a tax stamp, and $40K will get you one…eventually.


    Or you can buy a civvie version for much, much less.

    The SP5 is a 9mm version sold in the U.S.

    HK SP5
    HK SP5

    The SP5 comes with a high price tag but is still cheaper than the OG.

    H&K’s SP5 uses a semi-auto design, so no tax stamp unless you go with the SBR variant.

    Best MP5 Clone
    at Guns.com

    Prices accurate at time of writing

    Prices accurate at time of writing

    Available Coupons

    10. PTR 9CT

    PTR Industries swoops in to save the day with the PTR 9CT MP5.

    This little guy is produced under license from H&K. It’s made in the States using primarily U.S. parts.

    PTR 9CT
    PTR 9CT

    Chambered in 9mm, it’s a fun little gun, weighing in at just over 5 pounds.  

    It accepts MP5 mags and can throw 30-rounds downrange at a semi-auto rate.

    PTR 9CT
    PTR 9CT (Photo: Gun Auction.com)

    Quality comes down to effort, and the effort is here. Plus, the PTR 9CT MP5 offers a nice platform for us Americans made by the home team.

    At around $1,900, it’s a lot cheaper than the true H&K version. That definitely doesn’t suck.

    at Guns.com

    Prices accurate at time of writing

    Prices accurate at time of writing

    Available Coupons

    11. Dakota Tactical D54

    Dakota Tactical is almost synonymous with MP5-style clones. Seriously, these guys know their stuff.

    Offering numerous models dedicated to the roller-delayed action, you’re bound to find a variant that speaks to you.

    Dakota Tactical MP5 Main
    Dakota Tactical MP5

    The D54 series brings a swath of sizes ranging from compact subguns up to full-size rifles. There’s something for the whole family here.

    Assuming you have a chunk of change to burn, that is. What I’m trying to say is these MP5 clones aren’t what we’d call cheap.

    Not that we’re surprised. Dakota Tactical makes some of the best clones out there. So, you get what you pay for.

    (Photo: Dakota Tactical)
    (Photo: Dakota Tactical)

    Prices start at $2,699 and top out at around $4,400.

    Dakota is known for its excellent roller-delayed guns, so you can expect to get a quality gun. And that peace of mind alone is worth the money.  

    Best High End
    at Dakota Tactical

    Prices accurate at time of writing

    Prices accurate at time of writing

    Available Coupons

    Own a Dakota Tactical Rollie? Rate it below!

    Readers' Ratings

    5.00/5 (790)

    Your Rating?

    Final Thoughts

    Roller-delayed blowback firearms are a super neat part of gun history, with some noticeable benefits.

    While they’re not as common as piston or DI gas guns, they hold a place in gun owners’ hearts for their reliable action and fun design.

    What is your fave roller-delayed gun? Let us hear from you in the comments! Want to delve into the history of the MP5 a bit more? Check out our historical look at the iconic HK MP5 or see a compilation of the Best MP5 Clones.

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    18 Leave a Reply

    • Commenter Avatar
      johnny richardson

      i feel for you having to deal with all these gun snobs, maybe thats why you have begenner th rough expert. so yall know who the smart a*%$s are lol, i think you did a very intertaining write up, some people have to showoff so feel all that...

      April 27, 2023 9:34 am
    • Commenter Avatar

      I still cry when I think about having had a HK 91 and letting it go because I just didn't have a place to store it :'( I refuse to think about the IMI Uzi Model B Carbine I sold at the same time. Oh well, still have fond memories of those two wonderful works of art.

      April 24, 2023 7:46 pm
    • Commenter Avatar

      Isn't the Walther CCP a delayed blow back pistol?

      April 24, 2023 11:28 am
    • Commenter Avatar

      JP’s JP5, and CMMG Banshee? Always having “best” in your title doesn’t mean you really know what the best really are.

      April 24, 2023 2:42 am
    • Commenter Avatar

      Why no CMMG?

      April 23, 2023 7:17 pm
      • Commenter Avatar
        Barry L

        Great question. No CMMG just shows me the authors really aren’t very knowable about the subject.

        April 24, 2023 12:36 am
        • Commenter Avatar
          Jacki Billings

          Hey Barry, thanks for reading. We have limited space so we can't list every model out there, but we do update frequently -- especially when we get models in to hands-on test, so keep checking back! Thanks again!

          April 24, 2023 8:12 am
    • Commenter Avatar
      David Boerboom

      Actually, that looks more like a Spanish Marine... I suppose I could be wrong....

      April 23, 2023 5:27 pm
    • Commenter Avatar

      Wish I could have a afforded the C308 just a very short few years ago when they were 650 new.

      April 23, 2023 5:13 pm
    • Commenter Avatar
      Doug H

      I purchased a PTR 9CT six months ago and absolutely love it. A really ‘cool’ gun which is surprisingly very reliable. Mounted a EOS on it and have a lot of fun shooting this at all types of targets. I have a suppressor on order now (which I’ll probably see in 2024) and really look forward to seeing how that total combo does!

      April 23, 2023 4:06 pm
    • Commenter Avatar

      I don't mean to sound like a dick, but you don't really know what you're talking about. Direct blowback isn't gas operation. Direct blowback is what most .380 pistols or .22 semi autos use. Secondly, delayed blowback guns are horrible for getting gas in your face since the chamber opens at such high pressures.

      December 1, 2021 4:05 pm
    • Commenter Avatar
      Doug Darby

      I was lucky to get one of the last two Z5rs in the country last year It came with an A2 stock The nice folks at Zenith really took care of me, doing a trigger job and painting the weapon for me (it was a SHOT show demo gun) It arrived in virtually new condition I run a Dead Air Wolfman on it and its a joy Zenith also sold me an A3 stock they had, even though it was listed out of stock on their site Could not be happier Only downside? Its registered as an sbr so I may have to worry about the goons knocking on my door some day

      May 3, 2021 10:30 am
    • Commenter Avatar
      Meat Eater

      CMMG? They have one of the best.

      May 3, 2021 8:58 am
      • Commenter Avatar

        Yep, love my Banshee Mk9 with 8" Barrel!

        April 23, 2023 7:20 pm
    • Commenter Avatar
      Meeester Paul


      May 3, 2021 5:37 am
    • Commenter Avatar

      Does the Grandpower Stribog A3 roller delayed action count?

      May 2, 2021 9:06 pm
      • Commenter Avatar

        It does, and it's an excellent option! Midway in size between an MP5 and MP5K, it's actually a tad lighter than the K. It can also be had at half the cost of an MP5/K clone (under $700 without brace), or pay a bit more for the version which uses Glock magazines!

        February 25, 2022 8:37 am
    • Commenter Avatar

      Hey guys i love each and every gun you mentioned with a notable mention for a couple! The Century C308 and the Heckler & Koch G3 as well as the Century CETME sporter. I recently purchased a pretty much all Odin works 9mm Carbine built locally by a gunsmith. I decided this time id like a .45ACP Carbine and went with the CMMG radial delayed blowback barrle/BCG combo from Primary Arms. I did also get a dedicated lower from a local gun shop that is just starting out making their own products like lowers and other parts. The upper is from a company your mentioned at Angstadt Arms.What im trying to figure out is since theres no gas system what do i plug the gas port with on the upper?lol Once i feel i have 100% of the parts im going to have my local guy build this one for me.hehe

      May 2, 2021 4:54 pm
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