I like Hogue too, here is my review of this pistol grip:
Review of the Hogue Tamer pistol grip for Remington 870
But I tried it just for fun, it makes shotgun compact but it becomes difficult to control the recoil.
And my thoughts about pistol grips: Remington 870 Pistol Grip Shotgun without a Stock
Pistol Grip
Re: Pistol Grip
http://www.Rem870.com - Blog about the Remington 870 Shotgun
Pistol Grip
Hogue!