In case the need arises to transition quickly from long-range shooting to a close-range target, the RMR 45? Offset Quick Release Mount allows the use of a Trijicon Ruggedized Miniature Reflex (RMR) reflex sight alongside your scope. Simply rotate the weapon to see through the RMR. The mount attaches without tools to a Picatinny rail and can be used on either side of the weapon. It is made of sturdy 7075-T6 aluminum and is designed to return to zero after being removed and reattached.