Essential part for upgrading your Airsoft Electric Gun AEG
A bumper-rubber is installed in both cylinder head & piston head of this set
Offer ultimate noiselessness and keep you from detected during skirmish
Ball Bearing Piston Head absorb most of the tension from the spring
The speedy head movement offer constant muzzle velocity
Recommended to use along with Upgrade Springs

-- LEVEL 2 Upgrade Series
-- Silent Head Set for Version III Gearbox

Material : Brass & POM