Editing FN MAG (section)

===Feeding===
[[File:MG3 Zerfallgurt.jpg|thumb|left|M13 links reassembled to previously fired 7.62×51mm NATO cartridge cases]]
[[File:FN MAG 2.jpg|thumb|Ksp58B loaded with a non-disintegrating DM1 7.62mm ammunition belt in Lithuanian service]]

The weapon feeds from the left side from open-link, metal [[belt (firearm)|ammunition belts]]: either the American disintegrating [[M13 link|M13 linked belt]] ([[NATO]] standard) or the non-disintegrating segmented German DM1 belt, whose 50-round sections can be linked through a [[cartridge (firearms)|cartridge]]. The DM1 belt is based on the last version of the ''Gurt 34/41''-family used in World War II in MG 34 and MG 42 machine guns.<ref>{{Cite web|url=https://smallarmsreview.com/feeding-the-tiger/|title=FEEDING THE TIGER - Small Arms Review|date=March 1, 2005}}</ref> After firing, the separated M13 link or emptied DM1 belt section is cleared out on the right side of the receiver through an ejection port normally covered by a spring-loaded dust cover.<ref name="remtek.com"/>

In order to adapt the weapon to feed from one belt type to the other, several components of the feed mechanism need to be reconfigured since the position of the feed tray's cartridge stop and pawl angles in the top cover are different. The MAG features a pawl-type feeding mechanism that continues to move the feed link during both the rearward and forward cycles of the reciprocating bolt carrier, producing a smooth belt flow.<ref name="remtek.com"/>

The feeding mechanism's three pawls are actuated by a roller connected to the bolt carrier. The feed channel rail, feed link, both feed slides and the feed tray are [[chromium|chrome]] plated. The top cover body is an anodized [[aluminum]] [[casting (metalworking)|casting]]. In the infantry assault role, the weapon can be fitted with a [[sheet metal]] container that houses a 50-round belt and is attached to the left side of the receiver.<ref name="remtek.com"/>