Self-loading carbine The Saiga-9 self-loading carbine is a derivative of the PP-19-01 Vityaz-SN submachine gun. Its design utilizes the blowback operation principle. The weapon is fitted with a metal skeletal folding stock, plastic fore grip and a pistol grip. It features an open sight. The carbine has a receiver-mounted Picatinny rail to allow for optical and collimator sights to be installed at user’s discretion. A lock has been introduced in the design of the trigger to exclude butt-folded...