Windham 7.62x39mm Flattop Upper Kit 7.62x39mm 16 Inch Barrel 30 Round

Includes a 16 inch M4 profile barrel in 7.62 X 39mm complete with handguards, Mil Standard 1913 railed front sight base/gas block with sling swivel, bayonet lug, 7.62 x 39mm bolt and bolt carrier and 30 Round 7.62 X 39mm magazine. The Barrel is 4150 chrome Moly Vanadium 11595E steel, chrome lined in bore and chamber, rifled 1 turn in 9.5 inches - right hand twist - with 4 lands and grooves. The muzzle is fitted with an A2 birdcage type flash hider (threaded 5/8 x 24).