CTR/TRG mags are better than AICS mags, however, they aren't better than AI AW/AT mags in my eyes as being able to top load the magazine in my AIAT is awesome. It's the one thing I don't like about my TRG-22.
When I bought my AT I specifically ordered the SFP just because I knew it'd have higher resale. I don't need it for 308 but since I had the option I went with it.
AI AT factory barrels also work great with 185gr Juggernaut bullets which easily make it to 1K.
OP: If your buddy doesn't want to take the risk then I'd go with a TRG-22 as they use a 1:11 twist barrel.
Got them in the mail today after being told by B-T they'd work in a KRG Bravo...they don't.
One had been removed from the package to be tested the other is sealed.
If someone wants both I'll knock off $5 since I can combine shipping.
$55 each shipped via PayPal (Gift or add 3.5%), USPS Money...