Leapers UTG Compact Pistol Laser Green Ambidextrous Black. Momentary/Constant On/Off Controls a Class 3R Bright Green Laser with a 3 Hour Runtime and an Optimized Low Profile Mounting Deck for Securely Attaching to Either Universal or Picatinny Rail Specifications for Leapers UTG Pro Compact Pistol Laser: Manufacturer: UTG Pro Color: Black Beam Color: Green Finish: Matte Black Wavelength: 522 - 542 nm Attachment Type: Weaver Picatinny Gun Make: Universal Gun Model: Universal Fabric/Material: Aluminum Mount Type: Weaver Hand: Ambidextrous Package Contents: Leapers UTG Pro Compact Pistol Laser What firearm models does the manufacturer say Leapers UTG Pro Compact Pistol Laser is compatible with? The manufacturer says that Leapers UTG Pro Compact Pistol Laser is compatible with UniversalLeapers SCP-LS279S-A: UTG Pro Compact Pistol Laser Green Ambidextrous