氣(qi)動(dong)(dong)(dong)(dong)(dong)(dong)操作(zuo)(zuo)(zuo)(zuo)依(yi)照原理(li)與不(bu)同槍(qiang)(qiang)(qiang)枝(zhi)的(de)(de)機(ji)械設計方式(shi)有分(fen)(fen)為(wei)(wei)四種(zhong)(zhong)五(wu)類：第(di)(di)一(yi)(yi)種(zhong)(zhong)是(shi)依(yi)賴活塞(sai)原理(li)進(jin)行(xing)槍(qiang)(qiang)(qiang)機(ji)運作(zuo)(zuo)(zuo)(zuo)的(de)(de)方式(shi)，亦(yi)即透過導(dao)流(liu)使氣(qi)體(ti)推(tui)(tui)動(dong)(dong)(dong)(dong)(dong)(dong)活塞(sai)，活塞(sai)連動(dong)(dong)(dong)(dong)(dong)(dong)槍(qiang)(qiang)(qiang)機(ji)，透過這(zhe)一(yi)(yi)串的(de)(de)程(cheng)(cheng)序完(wan)成(cheng)(cheng)槍(qiang)(qiang)(qiang)枝(zhi)的(de)(de)自(zi)(zi)動(dong)(dong)(dong)(dong)(dong)(dong)/半(ban)自(zi)(zi)動(dong)(dong)(dong)(dong)(dong)(dong)運作(zuo)(zuo)(zuo)(zuo)。然(ran)而(er)活塞(sai)的(de)(de)運作(zuo)(zuo)(zuo)(zuo)以(yi)行(xing)程(cheng)(cheng)為(wei)(wei)主，以(yi)行(xing)程(cheng)(cheng)移動(dong)(dong)(dong)(dong)(dong)(dong)距離的(de)(de)長短劃分(fen)(fen)，而(er)非以(yi)活塞(sai)的(de)(de)重量(liang)或者大小(xiao)劃分(fen)(fen)。第(di)(di)二種(zhong)(zhong)是(shi)利用“收集(ji)”子彈的(de)(de)高(gao)壓氣(qi)之后再導(dao)流(liu)進(jin)入汽缸推(tui)(tui)動(dong)(dong)(dong)(dong)(dong)(dong)活塞(sai)或整個槍(qiang)(qiang)(qiang)管(guan)連動(dong)(dong)(dong)(dong)(dong)(dong)到槍(qiang)(qiang)(qiang)機(ji)進(jin)行(xing)完(wan)成(cheng)(cheng)槍(qiang)(qiang)(qiang)枝(zhi)的(de)(de)自(zi)(zi)動(dong)(dong)(dong)(dong)(dong)(dong)/半(ban)自(zi)(zi)動(dong)(dong)(dong)(dong)(dong)(dong)運作(zuo)(zuo)(zuo)(zuo)。第(di)(di)三種(zhong)(zhong)是(shi)利用第(di)(di)二種(zhong)(zhong)“收集(ji)”氣(qi)體(ti)的(de)(de)原理(li)進(jin)行(xing)推(tui)(tui)動(dong)(dong)(dong)(dong)(dong)(dong)槍(qiang)(qiang)(qiang)管(guan)連動(dong)(dong)(dong)(dong)(dong)(dong)槍(qiang)(qiang)(qiang)機(ji)完(wan)成(cheng)(cheng)槍(qiang)(qiang)(qiang)枝(zhi)的(de)(de)自(zi)(zi)動(dong)(dong)(dong)(dong)(dong)(dong)/半(ban)自(zi)(zi)動(dong)(dong)(dong)(dong)(dong)(dong)運作(zuo)(zuo)(zuo)(zuo)。后一(yi)(yi)種(zhong)(zhong)是(shi)經由氣(qi)導(dao)管(guan)導(dao)流(liu)氣(qi)體(ti)向后“吹送”槍(qiang)(qiang)(qiang)機(ji)完(wan)成(cheng)(cheng)槍(qiang)(qiang)(qiang)枝(zhi)的(de)(de)自(zi)(zi)動(dong)(dong)(dong)(dong)(dong)(dong)/半(ban)自(zi)(zi)動(dong)(dong)(dong)(dong)(dong)(dong)運作(zuo)(zuo)(zuo)(zuo)。因此我們大約可以(yi)分(fen)(fen)為(wei)(wei)：短行(xing)程(cheng)(cheng)活塞(sai)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)式(shi)（Short stroke）。長行(xing)程(cheng)(cheng)活塞(sai)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)式(shi)（Long stroke）。氣(qi)井集(ji)氣(qi)操作(zuo)(zuo)(zuo)(zuo)（Gas trap）。槍(qiang)(qiang)(qiang)口增壓器（Muzzle booster）。直噴式(shi)氣(qi)動(dong)(dong)(dong)(dong)(dong)(dong)操作(zuo)(zuo)(zuo)(zuo)（Direct impingement；也(ye)稱為(wei)(wei)Direct Gas Action）。