The RMR mount is best for CQB work, using both eyes open, as well as keeping the P/PS-90 as light and discreet as possible. It is rugged (made from 6061-T6 aluminum) and tight fitting in the receiver and offers a very good cheek weld. This helps put the 1st shot on target as well as follow up shots.
It is supplied with all hardware and once you remove the old sight or rail, it takes no time to install with any of the RMR units.
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