SR25 gearbox upgrade

alexDeb94 · Nov 6, 2017

Hello everyone,

I have an A&K SR25,and I'd like to upgrade my gearbox with a new piston, piston-head and cylinder-head. I'm wondering which type of brand I would buy? I'm thinking of SHS or Lonex.

I also saw that the cylinder is a bit bigger then normal AEG cylinders, will this affect the seal of my piston-head?

thanks

Watchalewknat · Dec 4, 2017

Argus I'm curious. What is your set up on your a&k sr-25. I am searching for inspiration.

Interested in FPS, range, bbs used, externals and pic.

Thanks in advance!

alexDeb94 · Nov 22, 2017

Thanks, and yes after I posted this thread I discovered that the GB is extended.
Never the less thanks for the reply!

Argus07 · Nov 21, 2017

If what u refer to is the cylinder on A&K SR25 gearbox, its just longer than V.2 gearbox. The nozzle is longer, try SHS SR25 metal nozzle/PSG-1 nozzle(lots of people say it works). For piston u can't go wrong with SHS SR25 19 teeth piston.

Try this: https://www.airsoftsociety.com/thre...hreads/sr-25-guide-the-one-and-only-guide-you-need-for-all-airsoft-sr-25.62898/ it basically explains a lot of each brands variant of SR25 and its parts compatibility to V.2 GB/another type of GB. Hope this will help!

alexDeb94 · Nov 6, 2017

I also saw that Maple Leaf has a one-piece cylinder does anyone have experience with those?

SR25 gearbox upgrade

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