Facet mounted procedure having an integrated MILSTD 1913 rail piece for sighting devices. Made for use with the M203. Posted by BRAD on 23rd Jan 2020 Great solution, fits similar to a glove, strong, solid and will take a beating. Took me a moment to set up it because I’m https://arthurtjxjt.theideasblog.com/29978849/kac-rail-for-dummies