this is a must have for your pf-9, no messing with buttons or switches just grasp your pistol PROPERLY and your good to go. the factory sights are useless in low/no light. with this laser there is no question where you are in terms of target/shot placement. Buy it you will not be sorry!
Pros: blends seamlessly into frame, instant activation, super bright
This review was written in the old system and had content requirements that are different than reviews written today.