This is a high-end gear set for electric airsoft guns from Siegetek Concepts in the USA, offering
the world's highest level of durability and wear resistance.
Gear Set Specifications / Required Parts
Material / Manufacturing Method: Nickel-chromium-molybdenum steel, fully machined + press-fit & laser welding
Surface Treatment: Nitriding + Manganese Phosphate Treatment
Gear Ratio: 20.45:1
Sector Gear: Single sector gear, 16 teeth
Gearbox: Tokyo Marui V8
Piston:Half rack gear piston with all metal teeth
Anti-reversal Latch: For standard use
Number of Anti-reversal Latch Teeth: 14
If the latch is difficult to engage, please follow the diagram in the English installation guide below,
and shave off approximately 0.5mm from the tip of the latch to shorten it before use.






By shaving off the protrusion that catches on the dummy ejection port part of the
RETRO ARMS Piston 14.5 steel teeth TM Next Gen AR/M4, it can be used as a half-rack gear piston.
Please be aware that the inner diameter is slightly narrow and the piston head fixation is unique, so caution is needed during use.
Always ensure that the muzzle energy does not exceed the limits set by the Firearms and Swords Control Law.