原帖由 Dominic 於 26-6-2009 18:18 發表 not enough gas pressure or did you add buffer rings to the recoil spring?
原帖由 亞爾多 於 27-6-2009 00:21 發表 [搭單]我枝原裝馬記M9用134a掛唔到膛......用topgas會唔會有改善?[/搭單]