STREAMLIGHT TLR RM 1 LONG GUN WEAPON LIGHT BLACK 500 LUMENS WITH LASER AND PRESSURE SWITCH The TLR RM 1 Laser features independently operating push-button and remote pressure switches. Continued pressure on the pressure switch provides momentary-on activation, a tap of the switch puts the light in constant-on mode. A mode selector toggle switch transitions from laser only, light only, or light/laser combo modes. This light securely attaches to long guns with MIL-STD 1913/ Picatinny rails. Packaged as a complete package, this model includes a remote pressure switch and key kit. The TLR RM 1 is powered by one CR123A battery and is IPX4 water-resistant.