I found a really good fit the other day for my PT145 .45ACP. A glock 26,27,33 Blackhawk Serpa. The gun locks in place, doesn't move and the length was made for it.
After carrying it around, I found using the paddle platform is best for me due to the gun being a little heavier/bulky. It's more stable than the belt platform. The screw just needs a little tweeking. Makes un holstering a ease. Cost around $44