氣(qi)動(dong)(dong)操(cao)作(zuo)依照原(yuan)(yuan)理與不同(tong)槍(qiang)(qiang)枝的(de)(de)機械設計方式(shi)(shi)有分(fen)為(wei)四(si)種(zhong)五類：第(di)(di)一(yi)種(zhong)是(shi)依賴(lai)活(huo)塞(sai)原(yuan)(yuan)理進行槍(qiang)(qiang)機運(yun)作(zuo)的(de)(de)方式(shi)(shi)，亦即透過(guo)導流使氣(qi)體推動(dong)(dong)活(huo)塞(sai)，活(huo)塞(sai)連動(dong)(dong)槍(qiang)(qiang)機，透過(guo)這一(yi)串(chuan)的(de)(de)程序(xu)完(wan)成(cheng)(cheng)槍(qiang)(qiang)枝的(de)(de)自(zi)動(dong)(dong)/半(ban)(ban)(ban)自(zi)動(dong)(dong)運(yun)作(zuo)。然而(er)活(huo)塞(sai)的(de)(de)運(yun)作(zuo)以行程為(wei)主，以行程移動(dong)(dong)距離的(de)(de)長(chang)短劃分(fen)，而(er)非以活(huo)塞(sai)的(de)(de)重量(liang)或者(zhe)大小劃分(fen)。第(di)(di)二(er)種(zhong)是(shi)利(li)用(yong)“收集(ji)(ji)”子(zi)彈(dan)的(de)(de)高壓氣(qi)之后(hou)再導流進入(ru)汽缸推動(dong)(dong)活(huo)塞(sai)或整個槍(qiang)(qiang)管連動(dong)(dong)到槍(qiang)(qiang)機進行完(wan)成(cheng)(cheng)槍(qiang)(qiang)枝的(de)(de)自(zi)動(dong)(dong)/半(ban)(ban)(ban)自(zi)動(dong)(dong)運(yun)作(zuo)。第(di)(di)三(san)種(zhong)是(shi)利(li)用(yong)第(di)(di)二(er)種(zhong)“收集(ji)(ji)”氣(qi)體的(de)(de)原(yuan)(yuan)理進行推動(dong)(dong)槍(qiang)(qiang)管連動(dong)(dong)槍(qiang)(qiang)機完(wan)成(cheng)(cheng)槍(qiang)(qiang)枝的(de)(de)自(zi)動(dong)(dong)/半(ban)(ban)(ban)自(zi)動(dong)(dong)運(yun)作(zuo)。后(hou)一(yi)種(zhong)是(shi)經由氣(qi)導管導流氣(qi)體向后(hou)“吹送”槍(qiang)(qiang)機完(wan)成(cheng)(cheng)槍(qiang)(qiang)枝的(de)(de)自(zi)動(dong)(dong)/半(ban)(ban)(ban)自(zi)動(dong)(dong)運(yun)作(zuo)。因此(ci)我們大約(yue)可(ke)以分(fen)為(wei)：短行程活(huo)塞(sai)傳動(dong)(dong)式(shi)(shi)（Short stroke）。長(chang)行程活(huo)塞(sai)傳動(dong)(dong)式(shi)(shi)（Long stroke）。氣(qi)井(jing)集(ji)(ji)氣(qi)操(cao)作(zuo)（Gas trap）。槍(qiang)(qiang)口增(zeng)壓器（Muzzle booster）。直噴式(shi)(shi)氣(qi)動(dong)(dong)操(cao)作(zuo)（Direct impingement；也稱為(wei)Direct Gas Action）。