500a Slide wont lock forward
Hi, New to the Site and forum and I have a question about an older (late 60's - early 70"s) Mossberg 500a, 20 guage, made for Western Field as a 550cr. It's a friends keepsake, his first shotgun, and it has a problem (or two). The fore end doesn't lock forward, regardless if loaded or not, and we hope ya'll can direct us to a path to solution. Maybe the action slide tube assembly?
Worse yet, he sent it to a "gunsmith" who disasembled it, kept it for 11 months and never fixed it. It was returned with the parts in a zip lock bag. The trigger assembly is intact. So prior to the reassembly I hoped someone would direct me as to where to look first to solve the problem of the pump not catching in the forward position....help?!
I'm hoping currently avalible Mossberg 500a parts will fit this baby. :?: