Systema Helical Standard Gear Set for Airsoft AEGs with Free Shipping!
This is the Systema Helical Gear Set w/ Piston & Bushings. This complete set is all you need to shoot a really high rate of fire. Systema is one of the oldest and most trusted brands in the Airsoft Industry. They have made a name for themselves by creating high quality upgrades at an unrivaled value. This complete upgrade kit includes helical high speed gears, full tooth piston, ball bearing bushings and shims.