I am looking to convert a Browning BPS I have into a tactical shotgun.

Are there conversion stocks and magazine extension tubes available for the BPS?

If so...could someone please point me in the right direction?

I believe you have entered a barren wasteland. the big boy tinker toys of "tactical pump shotguns" have to be Mossberg 500 and Remington 870. there seems to more available for them than anything else. good luck on your search

They make a synthetic stock and forearm for the BPS, iirc. It is for the waterfowl edition. You can get them in black or camo.

The extended tube is something you might find in the Brownell's catalog.

I did an 1100, the best modification I made (personally) was having the forcing cone extended. I had the barrel cut to 22" (rib post was there) and Rem Chokes installed. Nine round extension tube.
The forcing cone is standard procedure for serious Turkey hunters. Tightens the choke waaaaaaaaaay tighter, so you can hone a choke tube out to give you exactly the pattern you want with your loads. The pre-hone choke was full, and it made groups about 18" circular at 40yds.

Rich

A rare Nickudu sighting!!!!

indeed...

Thanks Nickudu!