Found this lil guy, not to shabby for 30 bucks.http://shop.specialopspaintball.com/special-ops-tom-bar.html
Mount the hammers together on an asa crossbar. I'd imagine the stock would take some getting used to, or it may even be in the way but for the TANK on the other hand, you'd have a nice way of stabilizing the guns while shooting as you lean against it with your chest.
grrrrrr just saw that the stock was sold separately. Sorry bout that.
I can also custom make these (tie bars for markers of any type) for a reasonable price, if anyone is interested. You have probably already seen the sets I have made for the Phenoms and 98s... B)
PM or email me if you are interested.