Pro-Win gearbox compatibility
Would a pro-win 7mm gearbox be compatible with a G&G M16, because websites don't make it clear as to which guns it will fit in. I would appreciate it someone could possibly help me with this. Also if someone has used one of these or installed one I would very much appreciate it if somebody could tell me what type of "custom modifications" it needs in order to fit within the gun.
Thanks a lot,
ROF_Madman
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