Adams Arms is a leading force in piston system AR-15 components and rifles. The 5.56 Mid-Length Tactical EVO Piston Upper Assembly with 14.5" barrel is a short-barreled upper that incorporates patented Adams Arms technology and the Samson Evolution free-floating forearm.
The mid-length piston system will give you the benefits of a longer forearm by providing the user a longer, more ergonomic grip, a longer sight radius between the front and the rear sight for quicker sight acquisition and less felt recoil. The free-floating forearm is a 12.37" tube that extends around the gas block, giving you enough space to mount the removable picatinny rail pieces to meet all of your needs.
The AR-15 piston system parts and the barrel have been treated with a salt nitride melonite process making them harder and more corrosive resistant than hard chrome.
Features and Specifications:
Upper Receiver: A4 Flat-Top, Forged
Chamber: 5.56x45mm NATO
Barrel: 14.5", Government Contour, 4150 Chrome Moly Vanadium Steel With QPQ Melonite And Black Nitride Finish (Not Chrome Lined)
Rifling: 1:7" Twist
Muzzle: 1/2"x28 Threading
Muzzle Device: A2 Flash Hider
Handguard: Evolution Rail
Gas System Length: Mid, Short Stroke Piston Operated
Gas Block: 0.750" Dia, XLP Multi-Adjustable Low Profile Gas Block
Bolt Carrier: 1-Piece Integral Piston Strike Face
M4 Feed Ramps
Made in the USA