Streamlight TLR-1 300 Lumens Gun Light For Glock / MIL-STD 1913 (Picatinny) / Beretta 90Two / S&W SW99 & TSW RailsStreamlight TLR 1 Gun Light. Made out of 6000 Series Machined Aircraft Aluminum with Durable Black Anodized Finish. 300 Lumens; 2. 5 Hour Run Time; 12000 Candela Peak Beam Intensity. Rail Grip Clamp System. Includes Keys for Glock MIL STD 1913 (Picatinny) Beretta 90Two S&W SW99 & TSW Rails. Ambidextrous Momentary Constant On Operation. Highly Accurate Sight Repeatability when Remounting. Fits Most Existing Light Bearing Holsters. IPX7 Rated Design;