TLM1079 Features: * Pistol laser sight / trigger guard * Battery: LR44 * Operating temperature: 14F-113F * Range: 500m * Trigger guard / windage elevation adjustment * Universal pistol laser mount will mount to round or square trigger Specifications: * Red laser / 5mw Dimensions: * Power / wavelength: 635 / 655nm * Length: 2.25" * Net weight: 0.8 oz.