This mount was designed to have the strongest attachment method with the smallest footprint for your RMR optic. It is aluminum and hard anodized for years of long service life. This mount replaces the 5.25 FACTORY adjustable rear sight. .659oz. ONLY WORKS WITH THE XDM 5.25 9/40/45, NOT ANY OTHER MODEL OF XD OR XDM. Mfg: Springer Precision Llc
