I have experimented with making a range holster for my P226/Trident 9. I have found that any holster that ends at the end of the pistol's slide will snag on the suppressor.
The Trident, Multimount, and a few others step up slightly in diameter from the recoil booster to the body of the suppressor. The little shoulder at that spot on the can will grab at holsters if the holster doesn't extend past that spot. (In my experience)
"No, it's not a silencer. This little doodad is my own invention. I call it a loudener." --Sledge Hammer