AR15 M16 A3 Flat Top Upper 20" BARREL Free Float

*(IN STOCK NOW READY TO SHIP!) AR15 M16 A3 Flat Top Upper HBAR 20" BARREL with a full length free float tube and a flat gas block. This chrome moly barrel by E.R. SHAW is, without question, one of the finest AR15/M16 type barrels made - This barrel is machined from Chrome-Moly Vanadium steel - hardened to Rockwell C26 to U. S. Gov't. Military Specification This barrel has the HARD Manganese Phosphate Finish: the U. S. Government's recommended protective finish for steel - which affords complete protection against exterior rust. These barrels are of heavy-weight dimension their full length - which will help alleviate barrel whip and inaccuracy in semi and full auto fire. This barrel is button rifled with 6 grooves and lands - right hand twist 1 turn in 9" - which have been found to give the best shooting results with the widest variety of ammunition & comes with the 1/2 x 28 tpi A2 style flash hider mounted as shown.. (Upper receiver is complete LESS Bolt assembly and charging handle) ... Drop in your bolt assembly and charging handle and GO !!...Condition is Brand New Limited Quantity Available .. Get yours NOW while we have these ! Thanks for looking !