I have no idea what the model # is as it came without a box from my uncle's estate. This is a hand ejector with the serial # C22401. It's a 38 Speical caliber, a barrel length of 4", and has the fixed sites. It appears to be a 5 screw with the strain screw. I'm assuming it was factory engraved with a class C rating. It has an interesting trigger in that it's as wide as the guard itself and makes the trigger hard to grip even with the grooves. I leave it up to you experts to tell me what I have. Thanks...