SilencerCo SU4766 Billet Lower AR15 Receiver
Caliber: 5.7mm to .300 WM - Muzzle Average dB: 119.5 (.300 BLK) 130.1 (5.56 NATO) 133.9 (.308 Win) - Materials: Titanium Stellite & Stainless Steel - Diameter: 1.56 - Length: 7.09 - Weight: 14 oz. - Color: Gray - NEW for 2015! The Omega
