氣(qi)(qi)(qi)(qi)動(dong)(dong)(dong)操(cao)作(zuo)(zuo)(zuo)依照原理(li)與不同槍(qiang)枝(zhi)(zhi)的(de)(de)(de)(de)(de)機(ji)械設計方(fang)式(shi)有分(fen)為(wei)(wei)四種(zhong)(zhong)(zhong)(zhong)五(wu)類：第(di)(di)一種(zhong)(zhong)(zhong)(zhong)是依賴(lai)活(huo)塞(sai)原理(li)進(jin)行(xing)(xing)槍(qiang)機(ji)運作(zuo)(zuo)(zuo)的(de)(de)(de)(de)(de)方(fang)式(shi)，亦即(ji)透(tou)過導(dao)流使氣(qi)(qi)(qi)(qi)體(ti)推動(dong)(dong)(dong)活(huo)塞(sai)，活(huo)塞(sai)連(lian)動(dong)(dong)(dong)槍(qiang)機(ji)，透(tou)過這一串(chuan)的(de)(de)(de)(de)(de)程(cheng)序完(wan)成(cheng)(cheng)槍(qiang)枝(zhi)(zhi)的(de)(de)(de)(de)(de)自(zi)(zi)(zi)動(dong)(dong)(dong)/半自(zi)(zi)(zi)動(dong)(dong)(dong)運作(zuo)(zuo)(zuo)。然而活(huo)塞(sai)的(de)(de)(de)(de)(de)運作(zuo)(zuo)(zuo)以(yi)行(xing)(xing)程(cheng)為(wei)(wei)主(zhu)，以(yi)行(xing)(xing)程(cheng)移(yi)動(dong)(dong)(dong)距離(li)的(de)(de)(de)(de)(de)長短劃(hua)分(fen)，而非以(yi)活(huo)塞(sai)的(de)(de)(de)(de)(de)重量或(huo)者大小劃(hua)分(fen)。第(di)(di)二種(zhong)(zhong)(zhong)(zhong)是利(li)用(yong)“收集”子(zi)彈的(de)(de)(de)(de)(de)高壓氣(qi)(qi)(qi)(qi)之后再導(dao)流進(jin)入汽(qi)缸推動(dong)(dong)(dong)活(huo)塞(sai)或(huo)整個槍(qiang)管(guan)(guan)連(lian)動(dong)(dong)(dong)到槍(qiang)機(ji)進(jin)行(xing)(xing)完(wan)成(cheng)(cheng)槍(qiang)枝(zhi)(zhi)的(de)(de)(de)(de)(de)自(zi)(zi)(zi)動(dong)(dong)(dong)/半自(zi)(zi)(zi)動(dong)(dong)(dong)運作(zuo)(zuo)(zuo)。第(di)(di)三種(zhong)(zhong)(zhong)(zhong)是利(li)用(yong)第(di)(di)二種(zhong)(zhong)(zhong)(zhong)“收集”氣(qi)(qi)(qi)(qi)體(ti)的(de)(de)(de)(de)(de)原理(li)進(jin)行(xing)(xing)推動(dong)(dong)(dong)槍(qiang)管(guan)(guan)連(lian)動(dong)(dong)(dong)槍(qiang)機(ji)完(wan)成(cheng)(cheng)槍(qiang)枝(zhi)(zhi)的(de)(de)(de)(de)(de)自(zi)(zi)(zi)動(dong)(dong)(dong)/半自(zi)(zi)(zi)動(dong)(dong)(dong)運作(zuo)(zuo)(zuo)。后一種(zhong)(zhong)(zhong)(zhong)是經由氣(qi)(qi)(qi)(qi)導(dao)管(guan)(guan)導(dao)流氣(qi)(qi)(qi)(qi)體(ti)向后“吹送(song)”槍(qiang)機(ji)完(wan)成(cheng)(cheng)槍(qiang)枝(zhi)(zhi)的(de)(de)(de)(de)(de)自(zi)(zi)(zi)動(dong)(dong)(dong)/半自(zi)(zi)(zi)動(dong)(dong)(dong)運作(zuo)(zuo)(zuo)。因此(ci)我們大約可以(yi)分(fen)為(wei)(wei)：短行(xing)(xing)程(cheng)活(huo)塞(sai)傳動(dong)(dong)(dong)式(shi)（Short stroke）。長行(xing)(xing)程(cheng)活(huo)塞(sai)傳動(dong)(dong)(dong)式(shi)（Long stroke）。氣(qi)(qi)(qi)(qi)井集氣(qi)(qi)(qi)(qi)操(cao)作(zuo)(zuo)(zuo)（Gas trap）。槍(qiang)口增壓器(qi)（Muzzle booster）。直噴(pen)式(shi)氣(qi)(qi)(qi)(qi)動(dong)(dong)(dong)操(cao)作(zuo)(zuo)(zuo)（Direct impingement；也稱為(wei)(wei)Direct Gas Action）。