With all due respect to all the skilled shooters who make the M1A sing:
I don’t like the M1A/M14 very much. When I owned my National Match, it was a 1.5 MOA rifle at best (and cost more than my sub moa AR10). The safety was in the trigger guard, and when practicing handling the rifle dry, I’d occasionally pull the trigger when I went to rapidly disengage the safety. Training issue? Probably. But safety in the trigger well is a big no go.
Bolt release. Unless you upgraded, the only bolt release was by sling-shotting the charging handle. So it’s sort of like an AK–you can use your shooting hand or you can come over or under. I wanted a ping pong paddle.
You’ve already covered the scope mounts sucking.
The gun was also unbelieveably front heavy. Perhaps it was my heavy barrel, but my gun was definitely NOT a tactical blaster. In comparison, I find my FAL with the same barrel length to be much handier (lighter profile barrel though).
Take-down also sucked. Perhaps only because I did it a couple of times. And I wasn’t supposed to take apart my M1A national match. It took a lot of force to unhinge the trigger guard in order to begin take down. Not like the simple push-pin of the SCAR.
Honestly, if you’re an AR guy and you want something non-AR but close enough that you can pick up the gun and rock-n-roll without too big of a change in your manual of arms, the SCAR is the way to go. I personally did not like the SCAR’s height over bore, or how “tall” the gun felt, but it’s very intuitive and ergonomic to an AR user.
If you can afford it, I think the SCAR is the next generation 7.62 main battle rifle.
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The FAL. I like it. It’s not nearly as accurate as the SCAR though. I really like the controls, the bolt release, the charging handle, the take down lever. Slap a railed dust cover on there and you can mount reflex optics.
However, the trigger (usually) sucks, the mag release is still a rock-out type instead of push button. Folding style “para” models lose their ergonomics (or so i hear), and, as stated before, the accuracy department leaves most people wanting.
I treat my FAL like a beat up pick up truck, and my (sold) SCAR like a Range Rover.
/rant off. Hope this helps.