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Looking for used or a great deal on new.  Must be able to be mounted on the Marker Piston Plate.  Need the range to go down to six(ish), I'm usually set close to 7.  Comp 12 or 16 should work fine.


I have a used pair of Comp 20 I'm willing to trade or sell.




Edited by L&AirC - 2/24/12 at 5:22pm