SAA - Complete Match Stainless Steel 16" 1:8 Polygonal M4 Blackhole Barrel AR-15 Upper Recevier - 5.56

Product Description SAA - Match Grade Stainless Steel M4 16" Upper Receiver Assembly - Blackhole Weaponry 1:8 Poly The Surplus Ammo & Arms M-4 16" complete AR-15 upper Receiver offers unparalleled quality & accuracy with it's enhanced features that come standard.These upper receivers are built to mil-spec & are ready to mount to any mil-spec AR-15 lower receiver. We take pride in the precision craftmanship & quality components that complete these upper receivers. Fully assembled, includes bolt carrier group & charging handle. Test fired & ready to shoot. Upper Receiver Features: Caliber: 5.56mm NATO Bolt & Carrier Group: SAA Phosphate BCG Upper Receiver: Aero Precision Upper Receiver Material: Forged 7075T6 A3 Flattop with T-Markings & American Flag Gas Block: Double Railed Upper Height Gas Block (same plane) Gas System Length: Carbine Front Sight: None Barrel: Black Hole Weaponry 16" Match Grade M-4 Barrel Material: Match Grade 416 Stainless Steel Barrel Finish: Matte Blackend Barrel Profile: M4 Standard profile .750" Diameter Twist Rate: 1:8 Polygonal Rifled Flash Hider: Standard A2 Handguard: Magpul M.O.E.- Carbine Length Additional Info: Aluminum Delta Ring Assembly, M4 Style Feed Ramps, Complete with charging handle. *All uppers have been head spaced and test fired for safety and to insure proper function. NOTE: Complete AR-15 Upper receivers CANNOT be purchased with any complete (with lpk & stock installed) AR-15 lower receivers. Orders placed with both types of products will be amended.