Here are some pictures of the cage. This looks like a long type. Youtube vids of the V7 cyma m14 (NOT EBR) show the cage being much shorter.
Would this classic army cage be compatible, you figure? The screws seem like they'd line up, but it's probably safer to just exchange the motor eh?
http://www.airsoftparts.ca/store2/in...oducts_id=2236