Sootch00 Rifle Review: CMMG Mk57 5.7×28 AR-15

The CMMG Mk57 5.7×28 AR-15 uses the Patented Radial Blowback Bolt to reduced felt recoil and add reliability. Flat Shooting and accurate, it’s a pleasure to shoot at the range.

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CMMG Mk57 5.7×28 AR-15 SPECIFICATIONS

  • CALIBER: 5.7x28mm
  • BARREL: 8” 1:9 Twist, Medium Taper 4140 SBN
  • MUZZLE: A2 Comp, threaded 1/2-28
  • GAS PORT LOCATION: N/A
  • RECEIVER: Forged 7075-T6 AL M4 type upper, Billet 7075-T6 AL Lower
  • HAND GUARD: CMMG RML7 M-Lok hand guard
  • FINISH: Hard Coat Anodized Receivers and Hand Guard (Can be upgraded to Cerakote)
  • CHARGING HANDLE: CMMG Mil-Spec
  • PISTOL GRIP: CMMG A2
  • BUTT STOCK: CMMG M4 with 6 Position Receiver Extension w/Ambi Sling Plate
  • TRIGGER: CMMG Single Stage Mil-Spec Style Trigger
  • TRIGGER GUARD: Integrated Into Lower
  • SAFETY SELECTOR: CMMG Mil-Spec
  • WEIGHT: 5 lbs, 1oz (unloaded)
  • LENGTH: 24.5″(stock collapsed) 25.9″(stock extended, no muzzle device)

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  1. Thanks Soocth00, thanks a lot! I hope bad guys don’t watch your video’s I certainly know they don’t often wear body armor. But I do for work and now I have to rethink the plates I wear! I have a bad back so my options are very limited! Some info just should be left alone, I hope you don’t end up getting this info in the hands of someone who uses it to murder someone who works in the industry I do.! Some peoples children I swear to god!

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