MTMilitiaman:
Thanks for the comments. Reaching the tang-mounted safety is no problem for me. My hands would probably be considered on the smaller side of large (does that make sense?). I suppose it does require a more pronounced "reach around", but it happens mindlessly. Of course, I'm a left-handed long gun shooter that's been dealing with right-handed guns all my life, so I'm used to having to reach for things.
I really like the Knoxx SpecOps stock. But, I'd estimate the perceived recoil reduction to be perhaps 50%, rather than the 90% they claim. Don't get me wrong, 50% is nothing to scoff at. If I had it all to do over again I'd still buy the stock.
As far as the forend goes, I've not experienced any difficulties other than some problems at installation. The Surefire forend has too much material in the "valley" that is positioned below the barrel. On a 590A1, which has a heavier barrel than the 500, I found that when cycling the slide back it would wedge into the base of the barrel near the receiver and jam up. A bit of judicious grinding work with the Dremel tool relieved this and it now works flawlessly. But, in my mind,
with the rediculous expense of this piece of Surefire equipment it is TOTALLY unreasonable that I should have to do ANYTHING to this forend to make it fit. I voiced my displeasure with the folks at Surefire, but received no response.
My only other complaint with the Surefire forend light is that it is
HEAVY! It significantly changes the balance of the weapon. In fact, with a full load of shells this beast is quite heavy at just under 10 pounds.
stellarpod
Editted to correct stock model to "SpecOp".