I called 412-221-3636 and the guy says they dont offer AK barrels. How exactly did you get it? He insists they just do AR barrels. I believe you and several companies report using er shaw for their ak builds.
BTW I got this off warrior talk written by an engineer who owned an AK and did some bench style accuracy testing which I thought was interesting.
First I tested all the different ammo I could find by benching it in a
shooting rest contraption, with a scope, at 100 yards, with no brake and
with the forearm removed. I loaded all ammo into the chamber by hand,
and allowed plenty of time to cool between shots. It's just an accuracy
baseline, not real-world. Here's the list I made a couple years back,
Brown Bear HPs shot better than any other in both my AKMs, though the
testing was done with my "good" AK which is far more accurate than the
other one. But some folks have Wolf or Yugo shoot better in theirs:
NOTE ... this is merely three-shot groups, as I didn't have enough of all
the ammo types for five-shot groups, which is really more representative.
Wolf Performance FMJ 8.5"
Wolf 154gr SP 7.75"
Remington PSP 7.25"
Wolf Performance 122gr HP 6.25"
Remington UMC (cheap FMJ) 6"
Winchester "White Box" FMJ 5.5"
Federal 'Red Box' FMJ SP 4"
Brown Bear FMJ 2.25"
Brown Bear 123gr HP 1.75"
Winchester Super X 123gr SP 1.0" (@ 80 yards)
* Bench testing again trying different forearms and noting how tightly
they fit during installation. One AK wound up with a Galil forearm and the
other wound up back with the stock plastic.
* Trying different gas tube fits using spare or borrowed parts. Both mine
shoot better with more loosely fitting tubes.
* Testing different muzzle brakes. I ditched the slant brake after this. I
gained a noticeable improvement in accuracy with my 'bad' AK when I
went to an AK-74 style brake and didn't lose anything on the 'good' AK.
Could be the way gas is vented and/or the weight of the brake. Not sure,
but it worked. The recoil, already low, is now almost nothing. Just a quick
jump then right back on target. My S308 is getting one of these, soon.
* Ensuring the receiver cover is not pushing against the front trunion
when installed. One of mine fit very tightly and required a pretty good
whack with something to put on. When I ground enough material off the
front edge for a better fit I got more consistent groups.
* Benching the weapon again every time something is added, such as a
light, new rail system, heavier scope, etc. I tried the UTG barrel clamp
rail with a flashlite and had to take it back off because it affected
accuracy. It was likely affecting how the barrel whips.
* Cleaning rod may affect accuracy, especially if it's wedged tightly.
Testing with and without is a good idea, too, if you need to squeeze the
most out of the humble Com Block battle rifle.
* Weighing and measuring the surplus ammo for sorting. We do it for
long range shooting, why not an AK when you need all you can wring out
of it. If anyone has additional ideas I'd like to hear them. I'm sure there are
more tricks to ensure the best accuracy your weapon is capable of. This
just mechanical accuracy of the rifle when fully benched.
And after it's documented then ya gotta train, train, train. The biggest gains in
accuracy are to be had by improvement of the shooter. My 'combat
accuracy' improved by leaps and bounds after I started training and
competing in long range/sniper matches and from learning to shoot from
the trigger reset on the carbine, just like I use with the pistol.
It's the Indian ... not the arrow. But you need to know your arrow is true.
