I plan to move forward with Wright Armory for my third P30LS, who were mentioned earlier in this thread. Not sure when that'll happen, as I'm waiting on my OEM threaded barrels first, but I'll get around to it eventually. I drove up to them awhile back to have them check out my current guns, and they seemed confident that they would be able to replicate, or perhaps even improve, on what Mark had did to mount my ACROs with the rear sight behind the optic (I wanted to keep the rear sight behind the optic specifically to have an identical sight picture with all my guns).