The nitecore GM02 gun mount is made from aluminum alloy and fits on picatinny rail systems. Designed to fit any 1" diameter light, the GM02 is machined precisely from aircraft grade aluminum alloy and hard anodized for rugged durability. Its fixed position enables weaver rail mounting as well, and a tightening stainless steel thumb nut allows adjustment so it stays fixed even through the heaviest recoil.