stocky86 Posted May 4, 2015 Posted May 4, 2015 Is there a way to decrease the fps on my ghk m4 aeg to gbb conversion kit. out of the box it shoots 350fps at temperatures of 20c. The site I use are being a pain and want me to drop the fps down to the 330-340fps mar, it's not alot but as far as I know you can't get a npas for this gearbox. Does anyone know of a way to get me to that 330fps mark? Thanks Adam
stocky86 Posted May 4, 2015 Author Posted May 4, 2015 Also I've heard that the g&g v2 gas mags work well with the ghk conversion m4 gearbox can anyone confirm that? Thanks again Adam
Drewster211 Posted June 16, 2015 Posted June 16, 2015 Sounds like you will need to downgrade the spring mate! An M90 should do the job!
UIVenger Posted June 16, 2015 Posted June 16, 2015 what gas are you using? if green/ultra - try 144A as its a lower powered gas.
Supporters Lozart Posted June 16, 2015 Supporters Posted June 16, 2015 Sounds like you will need to downgrade the spring mate! An M90 should do the job! He's using a GHK gas conversion kit, he doesn't have a spring. Josh95 and Monty 2
Drewster211 Posted June 16, 2015 Posted June 16, 2015 He's using a GHK gas conversion kit, he doesn't have a spring. Then don't change it because you don't have one! ;-)
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