I have Sig Pro Sp2340. i can not, despite much effort, find a holster for the goddam thing, at least not one that fits my needs. it had to be made form leather or ballistic nylon, and it has to have a retaining strap/flap that secures the weapon in the holster. the only ones i have ben able to find are the kydex ones that only cover half the gun, and they dont have the friggin strap, which i need. please help.