The C5L comes with three sets of rail adapters so it'll fit most guns that have a light rail. You just remove the screw then slide it on or off...the screw goes through the rail slot. It doesn't take long to mount/dismount but it doesn't "snick" on and off like the Surefire light on my Glock. The green laser is almost too bright...you can clearly see the line of the beam so it's great for pointing out stars at night. The 100 lumen light is awsome and strobes even brighter. Watch out for mirrors and windows...the reflection of the strobe will fry your brain...That light looks awesome. How quick does the light attach to the PPS?