I recently got a Mossberg 500 with pistol grip, because, well, everyone needs one right. All the things I read said the best pistol grip only shotgun was one that had a stock installed. Well it sounded like a challenge to me, long story short OOOOUUUCH!!!!! I spent the last week recovering from shooting 5 slugs and about 6-8 00buck, I mean maybe go to get X-Ray hurt. I shoot a 500S&W, Desert Eagle, ect I love big guns but this thing injured me. So I ordered a Knoxx Breacher's Grip installed it and just got back from the range. This grip is amazing I shot twice as much as before and not even a hint of pain. I resembles the recoil of a hot load in my 1911. If you have considered getting one but are standoffish get it, it works GREAT!