John, I doubt it with the mags and only have the one at present, be nice to find a straight mag, I guess someone may do them, to be honest more than happy just swapping over the cheap plastic butt and hand guard but it does require some work if anyone is thinking about it.
Still some internal bits to sort also. For anyone in the UKor EU looking for the furniture set, I bought it from Zib Militaria, cheaper in the long run from trying to get it from the states, although its not cheap but saved me many hours of producing one and probably would of ended up with another shelved project....
There is a lot stuff and add on's you can buy for them, a lot go for extendable butt stock and change the handguard for one you can attach all bells and whistles etc, but the wooden G3 furniture wins hands down all the time to me. (maybe more to do with age an tradition....)