I have no affiliation with the shop other than buying a couple guns from them thus far but wanted to give a heads up since I know people are always looking for PSR stuff and it’s in short supply.

Gun Repair Center is liquidating a bunch of Remington stuff from the bankruptcy and has lots of parts from Remington including some PSR parts. I haven’t gone through all the pages of parts yet but so far there’s magazines, rails, and some other stuff for PSR’s. Here’s a link to one of the listings, you can go to their page and sort rifle parts and go through or do an advance search by model with their seller name.

PSR handguards