The Rail Maser MRL-IR is a low profile auxiliary aiming solution for any rail equipped firearm. Equipped with an IR (Infrared) laser sight this low profile laser module is optimized to be used with night vision sights or goggles. It can be mounted almost anywhere freeing up valuable rail space for other accessories like a weapon light. It comes complete with Pic Rail and M-LOK adapters. The remote switch has tactile ON/OFF and Momentary ON functions. Backed by the Crimson Trace Crimson Protect limited lifetime warranty this laser sight is a must have for your self defense weapon.