Crimson Trace LG-411 laser grip or Ruger LCR The world's only grip-integrated laser sight. Ergonomically located laser on/off switch. Quick and easy laser alignment. Fiberglass reinforced nylon substrate with pliable rubber overmold. Works on all Ruger LCR's: .22, .38, and .357. Uses two #2032 Lithium batteries (included). $160 or best offer.