I have a Gear Sector FDE Rail Mount Hand Stop I'm no longer using. It's pretty much LNIB condition. It was mounted for a short time and not really used. Regular price is $50. My price is $40 if you meet on my side of town. $45 if I got to ship it. OBO of course.
https://www.gearsector.com/view/product/182/
PM me if interested.
https://www.gearsector.com/view/product/182/
PM me if interested.