氣(qi)(qi)動(dong)(dong)操(cao)作(zuo)(zuo)依(yi)照原理與(yu)不同槍(qiang)(qiang)枝(zhi)的機(ji)械設計方式(shi)有分為四種(zhong)(zhong)(zhong)五類：第一種(zhong)(zhong)(zhong)是(shi)依(yi)賴活(huo)(huo)塞原理進(jin)行槍(qiang)(qiang)機(ji)運作(zuo)(zuo)的方式(shi)，亦即透過(guo)導(dao)流使氣(qi)(qi)體(ti)(ti)推動(dong)(dong)活(huo)(huo)塞，活(huo)(huo)塞連(lian)動(dong)(dong)槍(qiang)(qiang)機(ji)，透過(guo)這一串的程(cheng)(cheng)序完(wan)成(cheng)(cheng)(cheng)槍(qiang)(qiang)枝(zhi)的自動(dong)(dong)/半(ban)(ban)自動(dong)(dong)運作(zuo)(zuo)。然(ran)而活(huo)(huo)塞的運作(zuo)(zuo)以(yi)行程(cheng)(cheng)為主，以(yi)行程(cheng)(cheng)移動(dong)(dong)距離的長短(duan)(duan)劃(hua)(hua)分，而非(fei)以(yi)活(huo)(huo)塞的重量或者大小劃(hua)(hua)分。第二種(zhong)(zhong)(zhong)是(shi)利用(yong)(yong)“收(shou)集(ji)”子彈的高壓氣(qi)(qi)之后(hou)再導(dao)流進(jin)入汽缸推動(dong)(dong)活(huo)(huo)塞或整個槍(qiang)(qiang)管(guan)連(lian)動(dong)(dong)到槍(qiang)(qiang)機(ji)進(jin)行完(wan)成(cheng)(cheng)(cheng)槍(qiang)(qiang)枝(zhi)的自動(dong)(dong)/半(ban)(ban)自動(dong)(dong)運作(zuo)(zuo)。第三(san)種(zhong)(zhong)(zhong)是(shi)利用(yong)(yong)第二種(zhong)(zhong)(zhong)“收(shou)集(ji)”氣(qi)(qi)體(ti)(ti)的原理進(jin)行推動(dong)(dong)槍(qiang)(qiang)管(guan)連(lian)動(dong)(dong)槍(qiang)(qiang)機(ji)完(wan)成(cheng)(cheng)(cheng)槍(qiang)(qiang)枝(zhi)的自動(dong)(dong)/半(ban)(ban)自動(dong)(dong)運作(zuo)(zuo)。后(hou)一種(zhong)(zhong)(zhong)是(shi)經由氣(qi)(qi)導(dao)管(guan)導(dao)流氣(qi)(qi)體(ti)(ti)向后(hou)“吹(chui)送”槍(qiang)(qiang)機(ji)完(wan)成(cheng)(cheng)(cheng)槍(qiang)(qiang)枝(zhi)的自動(dong)(dong)/半(ban)(ban)自動(dong)(dong)運作(zuo)(zuo)。因此我(wo)們大約可以(yi)分為：短(duan)(duan)行程(cheng)(cheng)活(huo)(huo)塞傳(chuan)動(dong)(dong)式(shi)（Short stroke）。長行程(cheng)(cheng)活(huo)(huo)塞傳(chuan)動(dong)(dong)式(shi)（Long stroke）。氣(qi)(qi)井(jing)集(ji)氣(qi)(qi)操(cao)作(zuo)(zuo)（Gas trap）。槍(qiang)(qiang)口增(zeng)壓器(qi)（Muzzle booster）。直噴式(shi)氣(qi)(qi)動(dong)(dong)操(cao)作(zuo)(zuo)（Direct impingement；也稱為Direct Gas Action）。