I think the best thing to do is to not post anything if you don’t want to answer. Then the op will give up on waiting and try to find the info elsewhere, instead of getting them pissed of at some copy and pasted comment or link to google. if they intended on using it the would have. Just my 2 cents.
As for the mechbox the only thing I can say is that I personally will be going with the m4 (V2) because of the wide variety of upgrades both internally and externally and as it stands now it is the mecbox I would feel the most safe upgrading/ fixing. Hell when I finish my college course ill just machine one out that is made of a half decent metal none of this pot metal crap. But if you want an in-depth review on either gun go here http://arniesairsoft.co.uk/?filnavn=...rev_rifles.htm