RTB 16" 5.56 Upper Receiver - Black A2 15" M-LOK Mid Length Without BCG & CH - $175.96 after code: "TOPEND20"

Description

RTB 16" 5.56 Upper Receiver | A2 | 15" M-LOK | Mid Length | Without Bolt Carrier Group and Charging Handle This 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 making the action smooth and easy to keep clean. Barrel Specifications Caliber 5.56 Length 16" Material 4150 Chrome Moly Vanadium Profile Government Finish QPQ Corrosion Resistant Gas System Length MidLength Gas Block Journal .750" Dimpled? No Twist Rate 1:7 Muzzle Thread 1/2x28 TPI Weight 27.2oz Barrel Extension M4 Feed Ramps Target Crown 11 Degree   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"   Please Note: Uppers may present light fouling from our quality control process and/or test firing SKU: RTBBU-16M55615-BLK UPC: