I was recently given my wifes' late stepfathers NEF Pardner singleshot .410 After checking the serial with the factory, turns out it was made in 2000. And the good thing about that is NEF's barrel program for the pardner series started in 2000, which allows for numerous barrels to be fitted to that gun, much like the handi-rifle, though the pardner series doesn't accept big bore rifle calibers. So, after finding out the particulars from the factory rep, I got the service request number from them to purchase 4 barrels for that gun and set it up for my "all purpose" receiver that will allow me as much versatility as an AR but easier with just a simple barrel swap. The barrels that I reserved were: A 28 inch 20 gauge full choke (which I do not own a 20 ga so I need one in my collection) A 22 inch 12 gauge w/fixed mod choke (just because I like 12's) A 38/357 magnum barrel with scope mount (which I plan to cut down to 16 inches and thread for my suppressor since 38 special are always subsonic so it should be Sshhhh!!! And the 357 will give me more than enough for brush hunting whitetail) A 44 Magnum barrel with scope mount for the big stuff. And counting the 410 barrel that came from the factory, is 6 different calibers/gauges from a single receiver long gun. I like the thought of that. I think most of us are already well versed in using breakdown shotguns, so it should give me a lot of bang for the buck.