Sorry, I should have been more clear.
I was thinking of a pistol grip shotgun in the pure sense of that. Pistol grip forend and another pistol grip at the trigger cage, with an overall length a few inches longer than the steel of the barrel and receiver.
As a gun dealer you know the stuff that you can get from Cheaper than Dirt.
The Command Arms picatinny systems for the Rem 870 are nice and are very effective.
Roger that. Yes, in that configuration they would be difficult to hunt with. There are lots of neat goodies out there for the 870, which is a very good shotgun to start with.