Vector Optic's Twilight Green Pistol Laser
Tucks neatly between trigger guard and muzzle, with no overhang, and will work not just with subcompacts but with virtually any railed gun.
With an additional rail on the bottom of flashlight or other accessories it makes an awesome combat-ready laser system.
Fits Ruger Sr 22 Xdm Xd, Sub Glock 17,19,20,21,22,32, Ruger Sr9, Ruger sr9c, most Smith and Wesson pistols, and Sig Sauer p250 full and compact, and more.
Specification Laser Wavelength: 532nM Green Laser Power: 5 mw