It consists of a 72 mm anti-aircraft missile set with a flight speed of 650 m/s, as well as a single-use launcher, re-usable gripstock and thermal battery coolant assembly electric unit.

The full name of the system is Przeciwlotniczy Zestaw Rakietowy Grom (literally, anti-air rocket-propelled set).

Initially at least since the 1970s the MESKO metal works in Skarżysko-Kamienna mass-produced license-built Soviet Strela-2M (SA-7 Grail) surface-to-air missiles, designated in Poland as Strzała-2M.

These were allegedly helped by the Polish intelligence services able to buy the design plans of the original 9K38 Igla missile system in the LOMO works in Leningrad (modern St. Petersburg) during the turmoil following the dissolution of the Soviet Union.

It consists of a single-stage projectile, a single-use tubular launcher, a starting mechanism, and an on-ground power supply.

In response, the Polish press quickly reacted and accused Russia of fabricating evidence to falsely link Poland to the conflict.