The 5.7x28mm Barrel and BCG Kit allows you to build an AR in 5.7x28mm using CMMG
s patented Radial Delayed Blowback operating system. Unlike typical direct blowback systems Radial Delayed Blowback not only reduces the weight in your BCG but it results in less felt recoil than a straight blowback system. CMMG
s 5.7x28mm Barrel and Bolt Kits are designed to work with either a CMMG Mk57 lower receiver or with a standard AR15 lower receiver (when using CMMG 5.7 AR Conversion Magazines). - TECH SPECS: - CALIBER: 5.7x28mm - BARREL: 5
1:9 Twist Medium Taper 416SS - MUZZLE: threaded 1/2-28 - GAS PORT LOCATION: N/A - FINISH: Salt Bath Nitride - Patented Radial Delayed Blowback - WEIGHT: 1lb 6oz
Products specifications
| Manufacturer | CMMG |
| SubCategory | ACCESSORIES-BARRELS & ACTIONS, Barrels & Actions |
| Category | ACCESSORIES |
| Stock Status | Out of Stock |