Looking to improve your range trips? Want the absolute most rigid and harmonically resistant barrel? A bull barrel delivers superb accuracy by increasing rigidity, decreasing harmonics and dramatically reducing felt recoil. These barrels are made in house on our state of the art CNC equipment, using only the highest quality stainless steel. Stress relieved 416R that has been air gauged and turned on centers delivers phenomenal accuracy when paired with match ammo. Upper comes with a stainless thread protector, optional muzzle brake available or add your own 1/2-28 threaded muzzle device later.
AR15 Upper Specifications: 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 416R Stainless Steel 5.56mm Barrel Air-Gauged, Inspected and head-spaced
Bull Barrel Profile Spiral Fluted for increased cooling and weight reduction Chambered in 5.56mm (Will also shoot .223) 1/9 Barrel twist .936" barrel diameter at gas block 1/2x28 threaded muzzle/barrel Low profile gas block Barrel dimpled to secure gas block Carbine-Length gas system Stainless steel thread protector 10" Tactical Free Float Quad Rail
Fits any mil-spec AR15 lower receiver.
Hardened 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 performance.
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 anytime after ordering or if you 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.