This video covers the RB7M Mossberg model, however the RB7R Remington model installs the same. Huge thanks to Eliud at Vortex Defense for making this video!
*** It is imperative that the clamps be checked for tight before every range day. The shock may work the clamps loose if a thread sealant like Loctite is not used. Failure to tighten clamps properly may result in rail movement and possible pin/rail breakage. ***