JG13 Compact Laser Sight with Pressure Switch.  JG13 in red laser with safe low <5mW power output. Made of lightweight aluminum, this 106mm long laser only weighs 76.6g, shock-resistant to withstand recoil in outdoor shooting. It comes with a coiled cord pressure switch for instant on/off control, dual mounting rings and full installation hardware plus CR2 battery included. Universal fit for scopes and 20mm rails, ideal for tactical training and hunting.