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![[RETRO ARMS] CNC Piston Head POM](http://rock-et.jp/cdn/shop/files/RETRO-7206_1024x1024.jpg?v=1750401403)
배송이랑 안내 모두 친절하게 해주셨고 물건도 완벽하게 도착했습니다
依頼から受け取りまでとてもスムーズかつスピーディーに対応して頂きました。
결국은 다 사게될 부품들, 드레곤볼 모으듯 신경 쓸 필요가 없습니다. (아마 더 쌀껄요?)
규제에 맞추기 위해 명시해주신 내용은 매우 중요한 힌트였고, 만족스럽게 튜닝 끝마쳤습니다.
RETRO ARMS piston head,
POM is made of resin and the weight of the piston head + O-ring is 3.6g.
It weighs just 8.7g including the thrust bearing and fixing screws.
When fixing the mounting screws, please use a locking agent for plastic (such as Loctite 425).
There may seem to be nine intake and exhaust holes, but
The area of the hole that is open as an air passage is about 40% of the diameter of the hole.
The effective area is equivalent to approximately 3.6 Φ2.5mm holes.