The slide is cut for the RMR, DP pro, and Sig Romeo1/Romeo1Pro - the reason you can mount so many optics is because we do not use recoil lugs, we use friction to reduce stress on the screws! Having a very tight hold on the optic through superior tolerances reduces strain on the screws, the slide itself is helping to hold the optic on! To answer your other question, the shims simply facilitate mounting different optics tightly to our slides. Please email in to Service@greyghostprecision.com if you need more information!
The slide is cut for the RMR, DP pro, and Sig Romeo1/Romeo1Pro - the reason you can mount so many optics is because we do not use recoil lugs, we use friction to reduce stress on the screws! Having a very tight hold on the optic through superior tolerances reduces strain on the screws, the slide itself is helping to hold the optic on! To answer your other question, the shims simply facilitate mounting different optics tightly to our slides. Assuming we are talking about our P320 Compact slides - these are designed for use in Compact, Carry, and Xcarry. These all utilize the 3.9" barrels! Please email in to Service@greyghostprecision.com if you need more information!
Great question, our slides do not include the recoil lugs and instead rely tolerances between the slide, shim, and optic to hold an optic steady(as well as the screws themselves of course!) This requires a bit more precision in the cut but is well worth it for optic compatibility.