Streamlight 88066 ProTac Rail Mount 1000 Lumen CR123A Lithium (2) Black

The ProTac series expands into weapon-mounted lights with this 1000 lumen light featuring a dedicated fixed-mount for Picatinny rails. It uses either a remote switch with momentary/constant on operation or a standard push-button tail switch, and can run on either a lithium battery or an easy-to-find alkaline battery.