Great quality, works as intended. - Evolution Gun Works Trijicon RMR Sight Mount

The overall quality is fantastic. Cutout for the striker retaining pin (Springfield xd) is perfectly placed. I was worried it wouldn't be as you never know what you're going to be dealing when when purchasing from a company you're unfamiliar with, as I was with EGW. However, I'm more than pleased with this mount. My Holosun 508T fit perfectly on it with very little wiggle (about a millimeter or less) before tightening the mounting screws on the optic. Once tightened, there is no movement whatsoever. Great mount, and I highly recommend it.