The 40x46 mm Round RLV-SMK-2 is intended to be fired at distance up to 400 m in order to place a smoke-screen or to mark targets.
The rounds are designed to be fired from: Underbarrel Grenade Launchers: UBGL-M6, UBGL-M7, UBGL-M16; M203; HK 69; etc.; Stand-alone Grenade Launchers: UGGL-M1, HK 69A1; M 79; STAR FN SCAR; M320; etc.; Multi-shot Grenade Launchers: Milkor MGL; M32 MGL; MSGL; etc.
Fuze Type AF49