Optic Delrin Shim to give Extra Elevation Range for Holosun 407K/507K/EPS/EPS Carry, Shield, Sig Sauer Romeo Zero, Leupold Delta Point Pro and JP Enterprises Micro Red dot Sight

Works great on my 407k

Needed a shim to properly mount a Holosun 407K X2 on a FN502. The FN502 needs a shim to be able to tighten the screws so that the red dot won't come lose. Worked well.The shim is thicker on one end and thinner on the other end so pay attention to how it is oriented.The footprint for the Holosun 407K is the same for the 507K and their EPS models. I don't know all the models of red dots that fit that footprint.

I had to file the holes and trim the length but definitely help me out. I actually used it in the reverse position.

Improperly dimensioned for RMSC. will not function without trimming/modification on RMSC.

Had to trim for the shim to fit but still worked

This 1 degree wedge took care of my situation and the fit between the sight and mount is very good, almost unnoticeable. Sight used is the Holosun 507 comp

Not the most fun to spend money on a shim, but when you need one it's nice to have a good one on the shelf and available. This fit well and is easy to install. Much faster than trying to make your own precision shim.

Holes appeared to align up with Sig Romeo Pro but would not align up with the pins on the Glock 19 due to what I assume are too tight of tolerances. Item is made of a plastic not that it’s a problem. I was able to carve out one of the holes to make it fit the Glock 19 plate. Lastly for the G19, the shim needs to be placed backwards compared to the Amazon picture (so that fat end is closer to barrel tip.)