the galil's design is supposed to make it work well in warm weather. it was designed from the finnish rk 62. the rk 62 itself was designed from the soviet ak-47 assault rifle. it was chosen as the winner of a competition for the israel defense forces. this competition included many other designs. some of these were the m16a1, stoner 63, ak-47 and hk33. the galil was officially brought into service in 1972. it replaced the fn fal.