Streamlight 69278 TLR-6 Tactical Pistol Mount Flashlight 100 Lumen with Integrated Red Aiming Laser Designed Exclusively and Solely for Glock 42 & 43, Flat Dark Earth - 100 Lumens Designed to securely attach to the trigger guard of the block 42/42 C4 LED and a 640-660nm Red laser Parabolic reflector produces a balance of beam and peripheral illumination Ambidextrous switch to access three modes Batteries can be replaced with light mounted on gun This is a Class 3R Laser Product, 640-660 nm, Output &lt;5mW