Firewolf Shockproof Tactical Green Dot Sight Scope 5mw Laser Pointer Emitter For Rifle Gun Logitech R400 Lazer

Wavelength: 532nm
Output Power: 5mw
Battery: CR123A Lithium Battery
Housing Size: 122mm x 40mm
Tube Diameter: 25.4mm
Fit for 20mm rail
Battery: CR123A Lithium Battery (not included)
Feature:
Constant on/off & pressure switches Products
color: Black
Package Include:
1x Green Laser Sigh t, 1x Tail Line Switch,1x Constant Switch,
1x Allen Wrench , 2x Mounts