1, High pressure gas compatible, CO2/HPA ready.
2, More accuracy with stop in front of hopup.
3, More solid blowback.
4, No rotate, but still 360degrees air intake for more constant FPS.
5, Short stroke version in advance pull out from the hopup chamber work with the EDGE Airsoft Ultra Light Housing. It can make a faster and reliable loading when using short stroked pistol.
*PS: Please note: installing parts / assemble /fitting airsoft gun will need intermediate knowledge; for expert or airsoft gunsmith. Please refer to your airsoft gunsmith for proper installation / fitting. Fitting may be needed as the condition of each airsoft gun might be different. Regular maintenance is needed for all airsoft guns in order to keep it in good working condition and reduce wear out issue on parts.