For sale is a Geissele MK16 rail. It was assembled on a Geissele upper and shot for 20-30rds. It's like new, except where I scratched the barrel nut when disassembling. I didn't back out the anti-rotation screw enough like a dumbass. Still works flawlessly and you can't see the scratch when assembled. Price reflects the scratch.
This one:
$220 shipped.
This one:
$220 shipped.