氣(qi)(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)(dong)操(cao)(cao)作(zuo)(zuo)依照原(yuan)(yuan)理與不同槍(qiang)(qiang)(qiang)枝(zhi)(zhi)(zhi)的(de)(de)機械設計方式(shi)(shi)有(you)分(fen)為(wei)四種(zhong)(zhong)五類：第(di)(di)一(yi)種(zhong)(zhong)是(shi)(shi)依賴活塞原(yuan)(yuan)理進(jin)行(xing)槍(qiang)(qiang)(qiang)機運(yun)作(zuo)(zuo)的(de)(de)方式(shi)(shi)，亦即(ji)透過(guo)導(dao)(dao)流使氣(qi)(qi)(qi)(qi)體(ti)(ti)推(tui)動(dong)(dong)(dong)(dong)(dong)(dong)活塞，活塞連(lian)動(dong)(dong)(dong)(dong)(dong)(dong)槍(qiang)(qiang)(qiang)機，透過(guo)這一(yi)串的(de)(de)程序完成(cheng)(cheng)槍(qiang)(qiang)(qiang)枝(zhi)(zhi)(zhi)的(de)(de)自(zi)動(dong)(dong)(dong)(dong)(dong)(dong)/半(ban)(ban)自(zi)動(dong)(dong)(dong)(dong)(dong)(dong)運(yun)作(zuo)(zuo)。然而活塞的(de)(de)運(yun)作(zuo)(zuo)以行(xing)程為(wei)主，以行(xing)程移動(dong)(dong)(dong)(dong)(dong)(dong)距(ju)離的(de)(de)長(chang)短劃(hua)分(fen)，而非以活塞的(de)(de)重量或者大(da)小(xiao)劃(hua)分(fen)。第(di)(di)二種(zhong)(zhong)是(shi)(shi)利(li)用“收集”子彈的(de)(de)高壓(ya)氣(qi)(qi)(qi)(qi)之后(hou)再導(dao)(dao)流進(jin)入汽缸推(tui)動(dong)(dong)(dong)(dong)(dong)(dong)活塞或整個槍(qiang)(qiang)(qiang)管(guan)連(lian)動(dong)(dong)(dong)(dong)(dong)(dong)到槍(qiang)(qiang)(qiang)機進(jin)行(xing)完成(cheng)(cheng)槍(qiang)(qiang)(qiang)枝(zhi)(zhi)(zhi)的(de)(de)自(zi)動(dong)(dong)(dong)(dong)(dong)(dong)/半(ban)(ban)自(zi)動(dong)(dong)(dong)(dong)(dong)(dong)運(yun)作(zuo)(zuo)。第(di)(di)三種(zhong)(zhong)是(shi)(shi)利(li)用第(di)(di)二種(zhong)(zhong)“收集”氣(qi)(qi)(qi)(qi)體(ti)(ti)的(de)(de)原(yuan)(yuan)理進(jin)行(xing)推(tui)動(dong)(dong)(dong)(dong)(dong)(dong)槍(qiang)(qiang)(qiang)管(guan)連(lian)動(dong)(dong)(dong)(dong)(dong)(dong)槍(qiang)(qiang)(qiang)機完成(cheng)(cheng)槍(qiang)(qiang)(qiang)枝(zhi)(zhi)(zhi)的(de)(de)自(zi)動(dong)(dong)(dong)(dong)(dong)(dong)/半(ban)(ban)自(zi)動(dong)(dong)(dong)(dong)(dong)(dong)運(yun)作(zuo)(zuo)。后(hou)一(yi)種(zhong)(zhong)是(shi)(shi)經由氣(qi)(qi)(qi)(qi)導(dao)(dao)管(guan)導(dao)(dao)流氣(qi)(qi)(qi)(qi)體(ti)(ti)向(xiang)后(hou)“吹送”槍(qiang)(qiang)(qiang)機完成(cheng)(cheng)槍(qiang)(qiang)(qiang)枝(zhi)(zhi)(zhi)的(de)(de)自(zi)動(dong)(dong)(dong)(dong)(dong)(dong)/半(ban)(ban)自(zi)動(dong)(dong)(dong)(dong)(dong)(dong)運(yun)作(zuo)(zuo)。因此我們(men)大(da)約可(ke)以分(fen)為(wei)：短行(xing)程活塞傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)式(shi)(shi)（Short stroke）。長(chang)行(xing)程活塞傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)式(shi)(shi)（Long stroke）。氣(qi)(qi)(qi)(qi)井(jing)集氣(qi)(qi)(qi)(qi)操(cao)(cao)作(zuo)(zuo)（Gas trap）。槍(qiang)(qiang)(qiang)口增壓(ya)器（Muzzle booster）。直噴式(shi)(shi)氣(qi)(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)(dong)操(cao)(cao)作(zuo)(zuo)（Direct impingement；也稱為(wei)Direct Gas Action）。