This 7.62 X 39mm Caliber Windham Weaponry Flattop Upper Kit includes a 16" M4 profile barrel complete with handguards, a Mil Std 1913 railed front sight base/gas block with sling swivel, bayonet lug, a bolt & bolt carrier, and 30 round 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 & grooves. The muzzle is fitted with an A2 Birdcage type flash hider (threaded 5/8 x 24).
|Type||Complete Gas Impingement|
|Sights||None (Optic Ready)|
|Barrel Material||4150 Chrome Moly Vanadium Steel|
|Product Model||Complete Upper Assembly|