Looking to trade an excellent rail grabber mount for the AN/PVS-4 night vision unit. Mounts to standard Picatinny rail, ie, RIS, RAS, A-3 AR, etc. Looking for a set of new AR-15 lower internals without pistol grip, and a 4 position CAR stock, standard or waffle pattern works, or will sell mount for $80 shipped. E-mail for pics. Thanks for looking and for use of the board.