I have a Armalite AR10 and was looking for the best forearm for a long shot AR .308 - have looked around alot and the best I could come up with was a PRI Gen carbon fiber - I know there is alot of them out there - I'm new to INGO and thought I'd try for some INGO advice - I also was wandering if anyone knew of a quality universal piston system for a AR10 or a quality gunsmith @ Lafayette or within Indiana's borders that can custom make?