Whether you've got a fullsize or compact 1911 with Crimson Trace LasergripsA(R), this replacement safety will allow you to operate your safety from either side, while providing enough clearance for the diode housing on your Lasergrips. We recommend you have a gunsmith perform the installation. *Kimber 1911 owners should not purchase this safety as it will not fit. Please see a gunsmith or contact Kimber directly.