Hardened Arms M4 Feed Ramp Flat Top Receiver Black anodized mil-spec finished upper receiver Feed ramps for increased feeding reliability on barrel and upper Laser etched T-Marked upper receiver Chrome Moly High End Steel Barrel Black Melonite Finish Chambered in 5.56 NATO (will also fire .223 ammo) 14.5" HBAR Profile barrel with M4 Extension 1/7 Barrel Twist .750" diameter at gas block 1/2x28 threaded muzzle/barrel Low profile gas block Barrel dimpled to secure gas block Carbine length gas system A2 flash hider 12" Tactical Quad Rail
Fits any mil-spec AR15 lower receiver.
Arms uppers are high end, accurate, head spaced, inspected and test
fired prior to shipping. They are built using stringent specs, top
quality parts and procedures to ensure maximum reliability and
You are responsible for knowing your state laws
regarding barrel lengths, pistol and short barreled rifle restrictions. A 20%
restocking fee will apply if you cancel any time after you order or can not take delivery due to state restriction.
Dealer programs are available on our website. Two year warranty against
manufacturer defects. Finishes will wear with use, no warranties apply
to finish wear. Fits any mil-spec AR15 lower receiver.