I have that exact setup on mine. All I did was take the PG screw, clamp it in the vise, take about 2mm or less off the end of it with a dremel cutoff wheel, threaded the screw into the PG nut without the grip on to make sure the thread wasn't wrecked, put the grip back on, checked if the screw went in far enough to pull the grip flush against the bottom of the gun and if it didn't, took another little tiny bit off with the dremel. GO SLOW. Do not hack off a bunch of material in one shot or you'll end up having to order another PG screw. Take off the least amount you can in one pass, test it, i