Home CMMG 40 Rounds! CMMG 5.7×28 AR Conversion

40 Rounds! CMMG 5.7×28 AR Conversion

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23 COMMENTS

  1. A 5" barrel and 4" handguard is just absurdly short IMO. I wear size 3XL gloves and I couldn't even get a hold on a handguard that small. Would have to hold the magwell so I don't potentially shoot my fingers off. Even for people with normal sized hands, that handguard/barrel is too short. I know that have an 8" one, thats much more practical IMO.

  2. Is it wrong that I immediately notice the cherry bomb and assumed a trash panda incoming?
    With the ballistics 5.7 can get off a short barrel and the capacity this looks like a great ar15 pistol build

  3. I am in the process of building me a 5.7 x28 Banshee, with a 5" barrel. I have a pistol dedicated lower for a Glock. My question is. Will a FN, EST, or any other mag fit in this Glock lower? A promag or something?

  4. as a Dday prepper … that looks perfect , but 5.7 seems smaller than 9mm , don't wanna mess up the barrel…. but it's got a place for it in the clip so , idk .. not sure what a buffer is lol , and Wondering how the firing pin hits the shorter round , 🤔 i guess it's the way but it loads from mag to the barrel.

  5. Sorry, I would rather have an AR57 if I want to shoot 5.7. I hope someone acquires it. 50 round mags are the best mags. Now with pistol braces and the AR57 pistol upper, I think it's time has come and no one is producing it.

    I wondered if shooting the AR57 would be hearing safe as it ejects down? It is full ambi. Did I say 50 round mags?

  6. Waiting on an 11 inch 5.7 upper to ship out. Have a PSA pistol lower with a Larue MBT trigger, Larue grip, and magpul trigger guard waiting. My wife and kids will likely enjoy the low recoil. I have a FN Five Seven as well. Ammo and platform are light. Accurate, and quick follow up shots. If it reaches out 200 meters with the 11 inch barrel, I will be impressed.

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