Purchased it new from Promoted Pawn LLC a little while ago. I was told the REM module was installed my M1BullPup himself. I never used or mounted it due to trading my PS90 shortly after purchasing the optic.
It is new/like new condition, exactly how I received it. Price is $530 shipped (insured) today only (11-29-2014). Payment via PayPal. Will ship out first thing Monday. Located near Fort Wayne IN. PM here works best. Thanks.