S400/S510 HuMa Regulator Service O rings
These are replacement O rings for the Air Arms S400/S410/S510/HFT500 HuMa regulator. Handy for when you want to carry out a basic service of your HuMa regulator.
The set contains:
2 x large main regulator body O rings,
1 x small regulator piston O ring,
1 x large regulator piston O ring,
1 x small set screw adjuster O ring,
They are black nitrile (rubber) O rings.
Please have a look at the Fitting Instructions page for a service video.
The photo is a generic picture of some O rings, not the actual O rings you will receive.
Regular price £85.00 Sale price £82.00
Regular price £85.00 Sale price £72.00
Regular price £80.00 Sale price £66.00