The hop-up rubber is made of soft silicone with an extremely high friction coefficient.
Due to the material combination, it works perfectly even in temperatures as low as -25°C.
It can hop BBs up to 0,46g and with the heavy BB hop-up arm, it lifts 0.49 BBs easily.
No R-hop modification needed.
It fits tight inside of the hop-up chamber ensuring a 100% seal.
When you clog the inner barrel with your finger and pull the trigger, the piston will stop before hitting the cylinder head due to the perfect air seal.
