Mid-Length M-4 Piston Upper


Category: .

Specifications and Features:
Chambered in 5.56/.223
Forged 7075-T6 aluminum mil-spec upper receiver with M4 feed ramps
4150 16″ Contour Barrel with 1:7 Twist
1/2″-28 tpi Thread
YHM Phanton Flash Hider
Parkerized Finish
Adams Arms Piston System
One Piece Bolt Carrier with Integral Strike Face
M-4 Style 2-Piece Polymer Handguard, Mid-Length
Single Rail Gas Block
Ambi-Charging Handle (see inset picture)

The midlength piston system will give you the benefits of a longer forearm by giving 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 piston system parts have been treated with salt nitride Meloniting process making them harder and more corrosive resistant than hard chrome. With the patented Adams Arms piston system, you’ll have an upper that will run cleaner, cooler, and longer than any other AR upper you own.


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