Just got the Q5 SF ,thought I was going to have to buy a new holster. Got to looking at old holster and noticed it only hit where the extended bottom rail was. Took a heat gun and heated at the front bottom of holster where the rail was and then the gun just went all the way in perfect. Lucky for me because i had just purchased the Ben Steoger Boss Holster and Boss Hanger for the Q5 poly.