Quoted: Yeah FAL mags are cheap, and you could go for the RRA .308, but did they fix the broken bolt problem that the Bushmaster FAB-10 had???
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No, they didn't, because it's a design/engineering problem that can't be fixed. The FAL bolt locks from the back, and the FAL mag is designed to feed to the center. The AR uses a front-locking bolt, and the ammo has to feed from the sides around the 6-o'clock locking lug. RRA has removed 2/3 or so of the 6-o'clock lug from the barrel extension so that the ammo will feed, but this, IMO, weakens the system too much, and will result in broken bolts, just like it did for Bushmaster.
Hesse and ASA went the other way and left the lug in place, but their guns wouldn't feed. It's a no-win situation.
The correct solution is to buy a gun that uses a mag that works correctly with the gun. Both the Armalite (modified M14) and KAC/DPMS (original AR10) solutions work fine.
The weakest link in any semi- or full-auto gun is the feed system, and if it isn't 100%, you are going to have a miserable experience, no matter what else is good.
Going cheap means losing the entire investment when it doesn't work right.
-Troy