4" Slick Side Billet 9mm Nitride Pistol M-LOK Upper Assembly

4" Slick Side Billet 9mm Nitride Pistol M-LOK Upper AssemblyAn affordable pistol upper assembly without cutting corners. This means using a nitrided steel gas block from an American Manufacturer as opposed to aluminum and quality American Made handguards, paired with a 4a ^2 Nitride treated barrel chambered in 9mm.This also means taking the time to ensure that the upper will function reliably. We use Permatex 242 on key components while using mil-spec AEROSHELL 33MS Anti-Seize grease on the properly torqued barrel nut and muzzle device.Specifications:AR-9 Slick Side Billet Upper Receiver6061 AluminumPairs with any Mil-Spec LowerM4 FeedrampsBarrel4a ^2 9mm Pistol Length Nitride1:10 TwistM-LOK Free Float HandguardAmerican MadeExtruded 6061 AluminumMuzzle DeviceKAK Slimline Micro Flash Can - 1/2x36Limited Lifetime Warranty