FYI. Not to be confused with their newly announced "New Generation Gearbox" coming out around this Christmas, G&G have made a slight revision/modification the their current non-blowback V2 gearboxes found in most CM and GC series guns. There is reinforcement internally on the top and bottom now. The bottom is so much thicker you need a different/modified tappet plate. Additionally, there are reinforcement "ears" on the bottom front. Just found out about this when I went to install an ETU into a CM16 Raider for a customer and said WTF. Never got any notice from G&G they were doing this.
Between this and the bracers they've been including for the last year or so, there should be little if any breakage of the front of the shell. The metal itself appears to be the same as the previous ones but who knows if it's actually different or not. Note: I have not seen this in all my latest shipments but it seems to be happening as new production goes through. It's in all my new CM16 Carbines, Raiders and Raider-L but not the R8 and Mod0. Non eof the GC guns I got had these in them. Also all the Raiders I got had 6.04mm brass inner barrels but the Carbines still had the 6.08mm aluminum inner barrels.
This is the announcement for the "New Generation Version 2"
