1 × B5 Systems BRAVO Black Mil-Spec Stock - OEM - BRV-1082; 1 × Discount Mil-Spec Carbine Buffer / Receiver Extension Kit - AR15-Buffer-Kit
3 × Anderson Manufacturing AM-15 Stripped Lower Receiver - Open - Anodized Black - D2-K067-A000
Subtotal: $224.79
Out of stock
Single spiral of spring steel loops around the bolt three times and leaves no path for gas leakage. Replaces conventional three-piece “piston ring”-style sets that can accidentally line up, causing a major leak from the gas expansion chamber in the carrier.