BT-4 Iron horse
Ricochet AK loader
Mamba fighting sling
BT magazine expansion chamber
Phaze 2 lower bolt, venturi or Starfire upper bolt
barrel upgrade or a cocker adapter
Air America x-chamber ( if you can find one)
AirAmerica Black Rain reg ( if you can find one)
It's BEAST. Get as dirty as you want.
Hard to find upgrades and after market parts anywhere but Ebay.
I always wanted one of these markers when I was a kid. Never could afford one til now. So I went on Ebay and got a vm-68 with a few upgrades on it for the low low price of 60 bucks.
It came with an Armson swirl barrel, AA x chamber and a VERY rare Black rain reg. Also a pro team's feedneck, and a trigger shoe.
I didn't have the valve tool so i had to take the barrel off to adjust the valve, which was kind of a PITA but not that big of a deal. Once I got the valve adjusted it shot like a dream with co2.
I was shooting eight inch groups or thereabouts at about 40 feet. I really need to get a stock barrel and see if the Armson spirals were hurting or aiding my shooting.
Trigger pull is fairly heavy, and don't expect to be walking the trigger. This marker shoots like a real rifle, has a bit of take up and let off in the trigger.
All in all I enjoyed the experience, and this is my play marker now. I wouldn't take it on a speedball field unless everyone else was playing stock class, but in the woods or in a scenario game this is a fine machine.
It's not the lightest thing in the world, and it's loud, but it's decently accurate, and it's nice to shoot a piece of paintball history that still works after all these years.