RTB Complete 16" 5.56 Lightweight Upper Receiver Black A2 13.5" M-LOK With BCG & CH - $263.68

Description

RTB Complete 16" 5.56 Lightweight Upper Receiver | A2 | 13.5" M-LOK | With Bolt Carrier Group and Charging Handle This Complete 16 inch M-LOK lightweight upper receiver comes with our RTB 13 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: Length - 16" Material - 4150 Chrome Moly Vanadium 11-Degree Target Crown - Further improve accuracy Profile - Pencil Finish - QPQ Corrosion Resistant Gas System Length - Mid-Length Gas Block Journal - .625" Gas Block Journal Twist Rate - 1/7 Twist Muzzle - 1/2x28 Threaded Weight - 22.7 oz  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 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: Uppers may present light fouling from our quality control process and/or test firing SKU: RTB16556135LW-BLK UPC: