Beamshot Ultra Bright Red Lasersight Black. Beamshot constructed these Red Laser Sights from aircraft-grade aluminum and these lasers are incredibly lightweight yet offer quite a bit of strength and power. This Beamshot Ultra Bright Red Lasersight 0.87in is compact enough to fit your firearm's sight dovetail and the laser's strong beam makes it the perfect attachment for a wide variety of projects outfits and gear. With these features you're bound to be impressed with the ease of using these sights especially since you can replace the battery after you get your beamshot ultra bright red laser installed and ready to go. Specifications for Beamshot Ultra Bright Red Lasersight: Manufacturer: Beamshot Color: Black Beam Color: Red Finish: Hard Anodize Laser Output: 1 mW Wavelength: 635 nm Maximum Range: 800 yds Attachment Type: Picatinny Weaver Battery Type: CR123A Battery Life: 27 hours Battery Quantity: 1 Length: 2.95 in Width: 0.87 in Weight: 2.12 oz Fabric/Material: Aircraft Grade Aluminum Additional Features: Rifle/Pistol with a rail slot Mount Type: Weaver Features of Beamshot Ultra Bright Red Lasersight: For all weapon that have weiver/picatanny 1913 rail Package Contents: Beamshot Ultra Bright Red Lasersight Beamshot BS1000UB/M1: Ultra Bright Red Lasersight Black