Adams Arms AR-15 14.5" Mid Base Upper - Pinned Model: UA-14.5-M-B-556-MFH UA145MB556MFH

Adams Arms AR-15 Mid-Length Gas Piston Complete Upper Assembly .223 Rem/5.56mm NATO 14.5" Pinned Barrel 1:7" Twist Rate Flattop Upper Receiver M4 Handguards Melonite Finish Black UA-14.5-M-B-556-MFH

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. This upper receiver's muzzle device is pinned and welded.

Adams Arms Complete Upper Receiver UA-14.5-M-B-556-MFH
5.56mm NATO (accepts .223 Remington)
14.5" 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
Pinned and Welded
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: UA145MB556MFH

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