This unique design mounts onto the trigger guard and locates the laserdiode directly under the muzzle. A front-located pressure switch activatesthe laser when the gun is held in a normal firing grip. Fully adjustablefor windage and elevation, the LG-435 puts the confidence of Lasergripsbehind the power of your 9mm. SPECIFICATIONS:Mfg Item Num: LG435 Beam Intensity :633nmDot Size :1/2" @ 50ftPower :5mwRange :Maximum legal outputWeight :Adds less than 1 ounceBattery :(1) 1/3N 3 Volt Lithium or (2) 357 Silver OxideColor :BlackGun Model :Keltec PF-9