I have LaserMax lasers, ArmaLasers, and Crimson Trace Lasers.they all work great, but the Crimson Trace and Armalaser are "instant on" where the LaserMax has an "ON" switch. You put a laser on a handgun for instant use in a high stress/panic situation. High stress/panic makes people do strange things. I want a laser that comes on without thinking about it. Fumbling for the "ON" switch, when your finger needs to be on the trigger could be tragic, and could cost you your life. My LCP and LC9 were both equipped with LaserMax lasers. I have replaced both with Crimson Trace lasers. The extra $30-40 the CT costs over the LaserMax could be the difference between your life, or tragedy. ArmaLaser doesnt make a laser yet for the SR9c. Crimson Trace does. Put a Crimson Trace on your SR9c.