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我不太懂,就自己的想法说说,抛砖引玉哈。gas port的位置决定gas tube的长度,决定什么时候枪膛的气体被feed back to drive BCG,所以越长的会越soft driven, because the gas in barrel will have to expand to a larger volumn, in return, bcg will have less power to be pushed from the gas, and gain less momentum, and less recoil you will felt(combined with suitable coil buffer/spring). It may also affect the temperature of the gas fed back to your bcg, probably to a lesser extend. But longer gas tubes will most likely be better for the longevity of your receiver/bcg/buffer wear as well. |
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