Type: semi-automatic carbine
Country of origin: USSR/Russia
Produced: 1945(9) - 1950+
Variants: SKS, ОП СКС, МР-163 (ОП – СКС), another variants with external magazines.
Action: short gas piston
Feed system: internal 10rds magazine (clip or manual loading), external box magazines in some variants
Customization: Muzzle devices, gas block, rear sight, magazine, mounts and rails for attachments. Another modules in some variants.