Adams Arms AR-15 Carbine Length Tactical Elite Complete Upper Assembly .223 Rem/5.56mm NATO 16" Barrel 1:7" Twist Flattop Samson Free Float Quad Rail Black UA-16-C-TE-556

Adams Arms
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The Adams Arms Carbine Length Gas Piston complete upper assembly has everything you need and want in a piston upper assembly. The short stroke gas piston operating system is designed to run cooler and cleaner than a standard direct impingement system. Piston systems increase overall reliability while also decreasing the amount of maintenance required to keep he firearm operational. This upper receiver can be connected to any standard AR-15 lower receiver.

Specifications and Features:
Adams Arms Complete Upper Receiver UA-16-C-TE-556
5.56mm NATO (accepts .223 Remington)
16" Standard Profile Barrel
1:7" Twist
4150 Chrome Moly Vanadium Steel
QPQ Melonite and Black Nitride Barrel Finish
Not Chrome Lined
Muzzle Threaded 1/2"x28
A2 Flash Hider
Carbine Length Short Stroke Piston System
1 Piece integral piston strike face bolt carrier
M4 Feed Ramps
Samson Free Float Quad Rail
Weighs 4.628 lbs