The CMMG Barrel and BCG Kit in 5.7x28MM is perfect for building an AR pistol or SBR, boasting an 8-inch barrel, and fits AR Rifles. It features a Radial Delayed Blowback system, offering less recoil and weight, and works with either a CMMG Mk57 lower receiver or Mk4/AR15 mil-spec lower receiver.
Specs
| Model No. | CMMG57D88C3 |
| Manufacturer | CMMG |
| Color | Black |
| Caliber | 5.7X28MM |
| Barrel Length | 8 |
