The TLR-7 A Contour Remote for use with most railed Sig Sauer P320 models is designed for one-handed shooting. Ideal for dog handlers, SWAT teams, door breaching, and close quarter operations. Custom optic produces a concentrated beam with optimum peripheral illumination. Pressure-controlled grip switch provides momentary operation. Uses one CR123A lithium battery (included). Safe-off feature prevents accidental activation; saves batteries. Rail grip clamp system securely attaches/detaches quickly and safely with no tools and without putting your hands in front of muzzle. Specifications for Streamlight TLR-7A 500 Lumens LED Tactical Light w/ Integrated Contour Remote Switch: Manufacturer: Streamlight Light Output: 500 lumens Bulb Type: LED Battery Type: CR123A Beam Color: White Color: Black Gun Model: SIG Sauer P320 Length: 2.58 in Weight: 6.4 oz Gun Make: SIG Sauer Weather Resistance: Waterproof Finish: Anodized Gun Type: Pistol Features of Streamlight TLR-7A 500 Lumens LED Tactical Light w/ Integrated Contour Remote Switch Custom optic produces a concentrated beam with optimum peripheral illumination Ambidextrous rear on/off switch; pressure-controlled grip switch provides momentary operation Uses one (1) CR123A lithium battery (included) or one (1) Streamlight SL-B9 protected Li-Ion USB-C rechargeable battery pack ''Safe-off'' feature prevents accidental activation; saves batteries Rail grip clamp system securely attaches/detaches quickly and safely with no tools and without putting your hands in front of muzzle Two models available for GLOCK (fits most railed Gen 4/Gen 5 handguns) or SIG SAUER (fits P320 XCARRY frame) Durable, anodized machined aluminum construction User-enabled strobe function Package Contents: Streamlight TLR-7A 500 Lumens LED Tactical Light w/ Integrated Contour Remote Switch Mounting Key CR123A Lithium Battery