HM Defense MonoBloc Upper 5.56 NATO/.223 Rem 12.5 Barrel Mid Length

MonoBloc Upper Features The MonoBloc Upper features a HM barrel with an integral machined patented gas block and a mid length gas system. It is also 4150 Chromoly match grade tripled honed and button rifled. Its handguard is free-floating and uses a Picatinny rial Magpul M-LOK and machined from 6061-T6 aluminum. Upper and Lower receiver are made of 7075-T6 aluminum with a hard coat anodized finish. The MonoBloc Upper also includes a patented HMB bolt Mil-Spec components charging handle and a dust cover with an American Flag. MonoBloc Upper Specifications Brand: HM Defense Gun Platform: AR-Style Caliber: 223 Rem Model: MonoBloc Upper Type: Complete Barrel Length Range: 12 to 12.99 Muzzle: Muzzle Brake Firearm Fit: AR-15 Pistol Handguard Finish: Black Hard Coat Anodized Handguards: 10.37 M-LOK Free-Float Receiver Finish: Black Anodized Receiver Material: 7075-T6 Aluminum Twist: 1:8 Barrel Description: 4150 Chrome Moly Match Grade Barrel Finish: Black Cerakote Barrel Length: 12.50