Does anyone know where I can find a Action Slide Hook Screw for a TTN 1897 shotgun? This is a Chinese made shotgun that was imported into the country several years ago and are no longer available. Parts for other Chinese imports such as IAC and Norinco will not interchange. I have read unflattering remarks about these shotguns on the wire from time to time but to the contrary, this has been a really good gun until the screw broke. I would appreciate very much any information that anyone can provide.