KLIN

PP-9 "KLIN" (ПП-9 "Клин") is a variant of PP-91 KEDR that is modified to fire a more powerful cartridge. Design of the KEDR dates back to 1970s from Yevgeny Dragunov, the same man who designed the SVD sniper rifle, the PP-91 variant KLIN was produced from 1996 to 2002 but it's exact development dates are unknown. KLIN SMG fires from a close bolt, it's operating mechanism changed from straight blowback to delayed blowback after branching off the KEDR, featuring improved ballistics to handle the higher armor piercing performance 9x18mm PMM cartridge, the weight of the gate have been increased and helical grooves are now present in the chamber. Feeding on the 20-/30-round box magazine, KLIN is able to achieve up to 1060 rounds per minute of rate of fire, KLIN achieved a 430 m/s muzzle velocity, ~30% higher than KEDR.