New Crimson Trace LG 415 Red Laser Grips FOR RUGER LCR & LCRX One Size:Black has "Not for retail Sale LP204G Yth Sz 13 Wht has "Not for retail Sale The Easton Synergy’s balanced swing weight ensures maximum swing speeds without the sacrifice of control RUNTIME: 4 hours of battery life that runs on (2) 2032 batteries (included) EASE OF USE: Front activation button engages the laser immediately when the firearm is held in a normal firing grip this model features a master ON OFF switch for completely powering down the unit user installed no gunsmithing required RELIABLE: Factory sighted at 50 feet but is fully user adjustable for Windage and Elevation with provided tool FITS: Ruger LCR and LCRx Revolvers