Description
RTB Complete 16" 5.56 Upper Receiver | A2 | 15" M-LOK | BCG & CH This Complete 16 inch M-LOK upper receiver comes with our RTB 15 inch free float handguard and is built with only the best Mil-Spec components. The heart of this upper is comprised of a 4150 barrel and our black nitride bolt carrier group that is finished with an incredible polish, making the action smooth and easy to keep clean.Barrel: 16" 5.56 4150 CMV Barrel - Black Nitride M4 Carbine Profile - .750" GB Journal 1:7 Twist Rate - 1/2x28 Muzzle Thread Bolt Carrier Group: Enhanced 9310 Steel (Bolt) 8620 Tool Steel (Carrier) Bolt is shot Peened and MPI All BCG components are pre-polished before being processed and then post polished for an incredible shine Upper Receiver: Machined from a Mil-Spec 7075 T6 forging Hard Coat Anodized per Mil-A-8625F, Type III M4 Feed ramps Made in the U.S.A. Handguard: MATERIAL: HARD COAT ANODIZED/CERAKOTED ALUMINUM HANDGUARD, ALUMINUM BARREL NUT PRECISION BORE ACCEPTS M-LOK RAIL SECTIONS & ACCESSORIES 7075-T6 BARREL NUT RAIL LENGTH IS MEASURED ALONG THE TOP INNER DIAMETER: 1.36" Charging Handle: Tried and True Standard Charging Handle Forged 7075 Aluminum construction Mil-Spec Type-III Hardcoat Anodized finish Caliber - .223 / 5.56 / 300 Blackout Made in the USA Please Note: Every upper is test fired during our quality control process and may present light fouling
SKU: RTB1655615-BLK
UPC: 860006521908
