g4 and gr16 upper receiver compatibility

Internals, Tips and Tricks for your G4
762headshot
Pawn
Posts: 1
Joined: Wed Mar 07, 2012 3:30 pm

g4 and gr16 upper receiver compatibility

Postby 762headshot » Wed Mar 07, 2012 4:02 pm

I'm wondering because my friend doesn't want his gr16 (broke and he wants a bullpup anyways) and i was wondering if i could use it for the base of a dmr build I've been wanting to do. He lives 3hrs away so just checking to see if it would fit isn't an option...

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