I missed the "Shootout" production
I've liked all of them so far, so it will be a shame if this one isn't up to par with the others.
I remember the "44 minutes" made for TV antigunfest on FX a while back, and the guys they interviewed for that, who supposedly were actually there, made a point of "you know the sound of a full auto 7.62x39 AK if you've ever been to Vietnam... 7.62x39 AK this, and 7.62x39 AK that." They made a point that they were x39s.
However. I've also read numerous accounts that state in addition to their primary use of AK's, they also made sparing use of a Bushmaster 5.56mm, and an HK-91 type .308. I'm beginning to think that no one really knows what they used at all.
They were covered in vests, and cut up vests on their legs, sides, etc. Certainly this did restrict their movement, and they did just stand fully out in the open. No effort was made e by them to take cover, and they didn't hit much of anything that they were shooting at. Could they have gotten away? Who knows. They didn't even try to get away until they had half the LE resources in Kali surrounding them. One thing they had working slightly against them was that a normal beat patrol cop saw them on the sidewalk outside the bank, and had an armed robbery response in progress right as they walked through the door.