I've been interested in doing an AR18 build for awhile, though parts kits aren't growing on trees and I can't seem to find one. A year or so ago I saw them on Numrich's but they are all sold out. I'm sure I'll find some combo of used and new Armalite parts and a torch cut receiver to try something with to satisfy my curiosity. The one change I'd like to make is modifying the receiver with an AR15 mag catch to use regular M16/AR15 mags.
Has anyone undertaken such a build and care to share any words of wisdom?