Kel-Tec Sub2000 Gen3 is a 9 mm Luger holding 15+1 shots has a 16 inch threaded barrel made of Black Nitride Steel with a Black Picatinny Rail, Aluminum Receiver, Handguard is a M-Lok Slots with Picatinny Style Rail , Black Synthetic Folding Stock. The rifle has a Blowback Operating System, OAL is 30.45 “, Muzzle is a threaded Protector, Twist is 1:10”, Trigger Pull Weight is 5 lbs, Thread Pattern is ½"x28, Weight is 4.20 lbs.