Re: Rock River ATH????
No experience with that exact rifle, I've always had my RRA's made to my specifications. However I'll give my opinion on some parts of the rifle.
I like the operator stock, for me it gives a much better cheek weld than a standard stock.
The railed tubes don't do anything for me, I don't hang a bunch of crap off my rifles and grabbing the rails always felt uncomfortable to me. The half rails are a decent compromise.
Accuracy shouldn't be a problem with an RRA and the two stage triggers are great.
I find the heavy barrels to be a bit much. Might not be an issue with the 18", but the longer ones made the rifles feel unwieldy.
Just my opinion, I'm sure others will disagree. Best thing to do is get ahold of one and see how it feels to you.