I order a Taurus PT 24/7 Serpa holster for another gun and think, "no way my 4566 will fit in this thing, but why not give it a shot".
Well, life has its surpises. The weapon retains and holds well in the holster , there's a small amount of rattle but nothing excessive or annoying. Pictures below for those who demand evidence. Theoretically this means a 4506 would fit as well,but I don't have one of those pistols on hand to confirm this obviously.Its the Taurus 24/7 standard Serpa CQC holster , for those interested.