Cr0-Magnon Posted July 7, 2022 Posted July 7, 2022 (edited) I've just picked up a brand new but old style TM M9, with fixed hop. It's pretty and I was planning on putting a Guarder kit on it but doesn't even hop a 0.20g. I was speaking to Luke @ Negative Airsoft yesterday and he says you can swap the whole unit for one of the Gen.1's, with grub screw hop adjustment. However he wasn't sure if you could use a unit from the Gen.2 (ie the wheel adjustment). Does anyone here know? Edited July 7, 2022 by Cr0-Magnon
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