Posted 30 Aug 2018 for sale TROS FN PS90 thread adaptor M12x1.0 LH to 1/2x28. New in the BAG! This is for converting your PS90 to a SBR. Ordered from Mark at TROS...customer backed out of the project. $65 shipped...Thanks: Phil (828)252-9487 Phil Flack P. F. Custom Guns pfcustomguns@bellsouth.net Asheville, North Carolina, United States Share this post Link to post Share on other sites