EGW Sight Mount Features The EGW Sight Mount replaces the factory rear sight on compatible Sig Sauer pistols installing directly into the existing dovetail to create a secure mounting platform for a Trijicon RMR or Holosun HS507C red dot sight. Machined from 7075 aluminum and finished in a durable Matte Black Hardcoat coating the mount is built to withstand the recoil and handling of daily carry or duty use without loosening or wearing prematurely. No alterations to the firearm are required for installation and the mount can be removed at any time to reinstall the factory rear sight giving shooters flexibility to switch configurations as needed. The mount ships complete with two 6-32 flat head screws and a 6-32 by 3/16 set screw for a secure precise fit. This mount is compatible with a wide range of Sig Sauer models including the P220 P224 P225 P226 P227 P228 P229 P238 P239 P245 P320 P938 and SP2022 as well as select Bersa Thunder and FN 509 models though it is not compatible with Sig 1911 models factory optics-ready Sigs like the P226 Legion RX or P320 X-Carry the P210 Target or the P365. Installation is straightforward requiring only removal of the factory rear sight followed by mounting the EGW plate in its place using the provided hardware and blue Loctite. At an overall length of 1.78 inches and width of 1.1 inches the mount adds minimal bulk to the slide while providing a rock-solid optic mounting surface. For Sig Sauer owners who want RMR or Holosun HS507C compatibility without buying an entirely new slide this EGW mount is a proven affordable solution that restores full duty readiness whenever the factory sight configuration needs to come back. EGW Sight Mount for Sig Sauer P220-229/320 Specifications Brand: EGW Fits: Sig Sauer P220-229 P320 and others Red Dot Fitment: Trijicon RMR Holosun HS507C Material: 7075 Aluminum Coating: Matte Black Hardcoat Color: Black Overall Length: 1.780 Overall Width: 1.1 Mounting Hardware: Included Available At: GrabAGun