Crimson Trace's Rail Master is an universal laser sighting system, and has quickly took the market by storm. Each unit provides a universal fit for rail-attached pistols, rifles and shotguns with Picatinny 1913 accessory rails. It features instant "tap-on/tap-off" activation. This model has 420/110 Lumen LED white light, Cree XPL LED bulb and waterproof aluminum body with black finish.
Specifications:

Type	Tactical Light
Output	420/110 Lumens
Bulb Type	Cree LED
Body Diameter
OAL
Weight	4.1 oz
Battery	CR123A Lithium (1)
Proofs	Waterproof
Color	Black
Material	Aluminum
Head Diameter
For Series
Rechargeable
Filter Color	White
Switch Type