Ordered a Knoxx SpecOps recoil reducing stock for my Rem 870. When I installed it, however, it's not totally flush with the receiver. The instructions say to make sure there's no 1/16 inch gap all around due to a washer from the Rem 870.. which isn't the case for mine. Also, my 870 Express didn't have any washer.
I emailed Knoxx one week ago and no response yet. Can someone with a SpecOps stock let me know if theirs has some space between the stock and receiver too? Is this okay?? I uploaded a couple photos showing the space. I haven't been able to visit the range yet to try it out.