For More information about compatibility with SSH models check out our blog post here
It is recommended to use the stock HK TRS (Trigger Return Spring) for best drop-in reliability
Red Dot Hardware: Burris FF3/Viper T15
105in above the receiver)
Please select the optic to be mounted in the drop down menu to provide the correct hardware kit
Low Profile Red-Dot Mount, Ruger Mark Series (RMR, Holosun) Silencer Shop Host (SSH) For More information about compatibilityPistol Compatibility Notice: Some new models of Ruger MKIV uppers have a new mounting pattern on the receiver which is not compatible with this product. The following models are NOT compatible with this mount: MARK IV 22 45 TACTICAL Silencer Shop Exclusive: 40179, 40182, 40181, 40186 MARK IV 22 45 LITE Optics Ready: 43946, 43947, 43948, 43949, 43960 Our low profile mount for Ruger MARK series pistols allows the end user to mount a Red Dot Optic