Description

Builder's Grade Complete 16" 5.56 Carbine Upper Receiver | 12" Slant Cut M-LOK | BCG & CH This Complete 16 inch M-LOK upper receiver comes with our RTB 12 inch free float Slant cut 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 Specifications Caliber 5.56 Length 16" Material 4150 Chrome Moly Vanadium Profile M4 Finish QPQ Corrosion Resistant Gas System Length Carbine 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  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: 12" free float handguard MIL-STD 1913 Picatinny rail on top 4 M-Lok slots on 3 sides Precision Machined 6000 Series aluminum, for high strength and weight savings Clamp on system for easy assembly Steel Barrel nut to resist movement under heat Made in USA   Charging Handle: Alloy Charging Handle Assembly Complete with Standard Latch Made from hardcoat anodized aluminum Black finish Please Note: Uppers may present light fouling from our quality control process and/or test firing***Please allow an additional 2-3 business days of lead time as these uppers are made to order.*** SKU: BG1655612SL-BLK UPC:

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