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[others] AGM M4 --- 啲氣一野"夫~~~"走哂

AGM M4 --- 啲氣一野"夫~~~"走哂

改完,打了幾個匣
打第二個匣時,第二三槍,啲氣一野"夫~~~"走哂
點解?
唔該

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引用:
原帖由 B20_hk 於 8-9-2009 22:56 發表
改完,打了幾個匣
打第二個匣時,第二三槍,啲氣一野"夫~~~"走哂
點解?
唔該
blow back唔夠力....bolt carrier推唔到個valve lock
cut唔到氣.....一次過出晒
valve lock蝕左都會有機會咁

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有冇睇係咪jam彈個陣先  走哂d氣

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