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The SA-18 GROUSE (Igla 9K38) is an improved variant in the the SA-7 & SA-14 series of manportable SAMs. As with the earlier SA-14, the SA-18 uses of a similar thermal battery/gas bottle, and the SA-18 has the same 2 kilogram high-explosive warhead fitted with a contact and grazing fuse. But the missile of entirely new design with substantially improved range and speed,. The new seeker and aerodynamic improvements extend its effective range, and its higher speed enables it to be used against faster targets. The SA-18 has a maximum range of 5200 meters and a maximum altitude of 3500 meters. The 9M39 missile SA-18 employs an IR guidance system using proportional convergence logic. The new seeker offers better protection against electro-optical jammers; the probability of kill against an unprotected fighter is estimated at 30-48%, and the use of IRCM jammers only degrades this to 24-30%.

The Igla-M [SA-N-10 ] is the naval version of the SA-18.

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SA-16 GIMLET Igla-1 9K310

The "IGLA-1" is a portable anti aircraft missile system (SA-16) with solid propellant guided missile. It is a simplified version of "IGLA" (SA-18) portable anti aircraft missile system. The system is designed for destroying low flying aircraft and helicopters. The missile can be launched to follow or meet enemy aircraft. SA-16 GIMLET (Igla-1 9K310) man-portable surface-to-air missile system, a further development from the SA-7 & SA-14 series, is an improved version of the SA-18 GROUSE, which was introduced in 1983, three years before the SA-16.

The SA-16 feattures a new seeker and modified launcher nose cover. Whereas the the SA-18 9M39 missile is fitted with an aerodynamic spike on the nose, the 9M310 missile of the SA-16 has the spike replaced with an aerodynamic cone held in place with a wire tripod. On the SA-18 the protective cover of the seeker is conical, on the SA-16 it is tubular with a prominent lip at the forward edge. The 9M313 missile of the SA-16 employs an IR guidance system using proportional convergence logic, and an improved two-color seeker, presumably IR and UV). The seeker is sensitive enough to home in on airframe radiation, and the two-color sensitivity is designed to minimize vulnerability to flares. The SA-16 has a maximum range of 5000 meters and a maximum altitude of 3500 meters.