The most important feature of this upper, writes the factory, is its reliability. This upper receiver comes furnished with a 3 5/8 inch Carbine buffer owners of A2 rifles will need an AR type buffer. Receiver and rail block measures just over 17 inches overall length from the receiver back to the muzzle end, total length is 24 9/16 inches. Bolt is heat treated 4140 chrome alloy parkerized, like the barrel. Barrel is 16.04 inch 4 channel fluted, free floating with open ended flash suppressor. GBQ Parkerizing process ensures finish durability on the steel. The assembly process’s final steps include Infused Hard Coat Anodized finish on the alloy, and parkerization on steel surfaces, installation of front and rear sight area picatinny rails. This upper is well ported for heat dissipation, and comes with an integral picatinny quad-rail system. The entire upper is precision milled to within. The receiver and its component rails begin with a single block of Aircraft Grade 7075 T6 aluminum, rated at 83000 PSI strength. Here is a complete upper that enables owners of AR-15 type rifles to convert their gun into something as good as an FN P-90 rifle, for about 1/3 of the usual cost. Dealers, collectors, and law enforcement, however, may take any number of extra packages at the same price and with no additional shipping charges.

This listing is for ONE upper and ONE magazine. Description: We cannot ship this to some jurisdictions please read the entire ad carefully before bidding or offering to buy.

16 inch barrel with 10 inch quad rail