||No they are not full metal, they are full plastic (not counting the spring obviously). Yes they do work in Echo1, TM, CYMA, and CA series Ak's, but DON'T work so well in VFC series Ak's. But with a little modification, you may be able to get them to work.
Mid cap mags
110 rounds a piece
5 per box
Will work with most, but not all, Ak series AEG's
Other than that, no problems what so ever. BUY EM!
Rating: [5 of 5 Stars!]