Looking to improve your range trips? Want the ballistic performance and harmonics that only a 20" barrel can deliver. These barrels are made in house on our state of the art CNC equipment, using only the highest quality 4150 chrome moly vanadium steel. Stress relieved, air gauged and turned on centers delivers phenomenal accuracy when paired with match ammo.
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 4150 Chrome Moly Vanadium Steel 5.56mm Barrel Air-Gauged, Inspected and head-spaced Chambered in 5.56mm (Will also shoot .223) 20" HBAR Profile barrel with M4 Extension 1/7 Barrel twist 750" barrel diameter at gas block 1/2x28 threaded muzzle/barrel Low profile gas block Barrel dimpled to secure gas block Rifle Length gas system A2 Flash hider 15" Tactical Free Float Quad Rail (No end cap)
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, Short barreled rife restrictions apply. 20% restocking fees if you cannot 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.