6 Inch Universal Mounting Platform UMP - Ergo Grips
Ergo U.M.P. Universal Mounting Platforms feature a standard Picatinny M1913 configuration. Mounting does not require alteration of AR handguard heat shields. Includes low profile rail covers. UMP Mounting Rails are made in the US from anodized flat black aluminum. ER4353 Rail Dimensions: 6" x .400"