The GAU-8 is about 20 feet long. The current M1 is about 32 feet long. It's easily doable. Extending the barrels past the current 32 feet mark is also no problem, if needed.
5 Legislative Days Left Until The AWB Expires
do you know how long the A-10 gattling gun is? You might be hard pressed to get it to fit into the M1A1 lol ! the A-10 was built around that gun ! It isnt small! lol
The GAU-8 is about 20 feet long. The current M1 is about 32 feet long. It's easily doable. Extending the barrels past the current 32 feet mark is also no problem, if needed.
5 Legislative Days Left Until The AWB Expires
But would a ground based version need such a long barrel to achieve comparable accuracy? As an urban assault vehicle, the distances that could be seen would be much shorter. Why not build a shorter barreled version that could be put on a tank?