Originally Posted by caboose36
As far as I know you wouldn't need to modify the AEG for it to fit. It should fit any make of M4. As for the battery, I'm pretty sure you could fit a small type battery in there no problem.
Okay, thanks. I just had some worries because I looked at the M4 S.I.R. by ICS and it came with a crane stock so I was having doubts.