CMMG Commercial Marketing Grp
Barrel And BCG Kit, 8" 4140CM SBN, 5.7x28mm
IVS Product #999874
MFG #57D88C3
- Our MKG's Barrel And BCG Kit Allow You To Build A Pistol Caliber Carbine Using Our Patent Pending Radial Delayed Blowback System. Unlike Typical Direct Blowback Systems, Our RDB Uses A Bolt That Is Forced To Rotate And Unlock, Slowing The BCG. This Results In A Lighter BCG For A Lighter Rifle, And Less Felt Recoil Than A Straight Blowback System.
- 8″ Medium Taper. 1:9 Twist. 4140 Chrome Moly. Salt Bath Nitride Finish Inside And Out. 5.7x28mm Chamber. Threaded 1/2-28. Radial Delayed Blowback Bolt (Patent Pending). Weight: 2.5 Lbs.