Adams Arms AR-15 16" Mid Base Upper Model: UA-16-M-B-556 UA16MB556

Adams Arms AR-15 Mid-Length Gas Piston Complete Upper Assembly .223 Rem/5.56mm NATO 16" Barrel 1:7" Twist Rate Flattop Upper Receiver M4 Handguards Melonite Finish Black UA-16-M-B-556

The Adams Arms Mid-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.



Adams Arms Complete Upper Receiver

5.56mm NATO (accepts .223 Remington)

16" Government Profile

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

Mid-Length Short Stroke Piston System

1 Piece integral piston strike face bolt carrier

M4 Feed Ramps

2-Piece Polymer Mid-Length Handguard

Railed Gas Block .750" diameter

Weighs 4 lbs

Manufacturer: ADAMS
Model: UA16MB556

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