Help!! Need model 120 shotgun assembly instr.

[Raystew]

I’m going nuts trying to assemble my Marlin 120 shotgun. This thing was partially apart when I got it. I’m unable to locate information on the net and my gun books only give exploded views, not sequential assembly instructions. I’m also looking for a 12 ga barrel.

I’m surprised at how little is out there on this great looking shotgun. The 120 is very well built with quality materials. Any information will be appreciated.