Some will give advice on these shotguns even though they know very little about them. I have some time behind these shotguns and know them pretty well.
They are well made and built like a tank: Machined extractor and ejector, metal trigger guard, thick high carbon steel receiver.
If you are planning on making a purchase, buy with confidence. They are little heavy because of the thick steel receiver. The Pardner Pump shotguns comes in different barrel lengths and finishes. H&R even has a combo model. All of them come with choke tubes except the HD Protector model. They use the Mossberg Accu-Choke system. H&R sales extra barrels for around $70. The only downside you have to send in the shotgun for the barrel to be fitted. That makes no sense because they are a drop in fit.
Someone has a 28" Pardner Pump barrel for sale on Shotgun World forums in the NEF/H&R section.
http://www.shotgunworld.com/bbs/viewtopic.php?t=155392
GC