Designed to be used on AK or Saiga-9 as a part of "Sport-2", "Sport-3", "Sport-4" kits.

Designed for the "Sport-1" kit.

Designed for installation on RPK-74 within the "Sport-5" and "Sport-8" kits

Designed for the Sport-4 kit

Flat head slotted screw

Designed for  "Sport-5U" and "Sport-8U" kits

Flat head slotted screw

Designed to be mounted on the PT-3 or PT-3С stocks instead of the standard one.

The buttstock is wide for stocks PT-1, PT-1S, PT-5.

Recoil Buffer DO-1 is designed for installation on recoil mechanism.

The buttstock is narrow for stocks PT-1, PT-1S, PT-3, PT-3S, PT-5.

Designed for Basis rail