Mouse Fart upgrade O-ring
-Improved rubber composition
-Further improves FPS and J stability
-Fits all series of Mouse Fart O-ring piston heads from 1.0 to 1.4 series
-High cemical resistance
-Suggested lubricant is WD40 brand dry PTFE
-Comes as standard on Mouse Fart piston head from 2022.06.10.
21 in stock