SAA - Complete 16" 1:7 M4 AR-15 Yankee Hill Quad Rail Upper Receiver with Nickel Boron Carrier - 5.56

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SAA - M4 16" Complete AR-15 Yankee Hill Free Float Quad Rail Upper Receiver Assembly with Nickel Boron Carrier- 1:7 Chromoly 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 Upper Receiver: SAA Upper Receiver Material: Forged 7075T6 A3 Flattop with T-Markings & American Flag Bolt Carrier Group: SAA Nickel Boron Carrier with Phosphate Bolt Gas Block: Double Railed Upper Height Gas Block (Same-Plane) Gas System Length: Carbine Front Sight: None Barrel Length: 16" Barrel Material: 4140 Chrome Moly Barrel Finish: Matte Black Barrel Profile: M4 Standard profile .750" Diameter Twist Rate: 1:7 Flash Hider: Standard A2 Handguard: Yankee Hill Free Float Quad Rail, 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.
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$539.99