to help you there may be two outs. one there a am stock class feed for sale on stock class paintball web forum under illision for sale with parts kit. the other out this new feed from wevo may fit. http://www.wevopaintball.com/
i had one installed on my cocker stock class fmb body.all the local shop had to do was shave a little bit of the bottom of the feed to fit the fmb body.
Does an ursine quadruped void wastes in an arboreal environment?