nice AK!
back on thread, I put a 7.62x39 together about a year ago and it is my beside the bed weapon. shoots just like yours Montana Marine.
i have ASC mags for it but regular ar mags work if you only load 10 or less.
what is it about the 7.62x39 that makes us smile? just does even though it drags up old memories.
mine shoots .308 just as well as .310's or maybe even better. 150's are the heaviest i have loaded mainly due to length. it shoots 150's into 2 inches benched.
all in all one of my favorite rifles even though my SKS will out shoot it.

the consolidation of the states into one vast republic, sure to be aggressive abroad and despotic at home, will be the certain precursor of that ruin which has overwhelmed all those that have preceded. Robert E Lee
~Molɔ̀ːn Labé Skýla~