no model number

[hobart]

We have an old 22lr pump with no model number on it . How do I find out what model it is. It does not eject after firing and I suspect the ejector is bad but cannot order a part without knowing what model it is. We also cannot find any schematics for it to idenify the part to be replaced. Any help would be appreciated.

[admin]

With no model number it's an early model 12. Go to http://e-gunparts.com they also have the schematic there.