achine gun</a> and the <a href="//en.wikipedia.org/wiki/L1A1_SLR" title="L1A1 SLR" class="mw-redirect">L1A1 SLR</a>; now the American <a href="//en.wikipedia.org/wiki/M4_carbine" title="M4 carbine">M4</a> rifle and the <a href="//en.wikipedia.org/wiki/Heckler_%26_Koch" title="Heckler &amp; Koch">Heckler &amp; Koch</a> <a href="//en.wikipedia.org/w/index.php?title=Heckler_%26_Kock_UMP&amp;action=edit&amp;redlink=1" class="new" title="Heckler &amp; Kock UMP (page does not exist)">UMP</a> submachine gun are em