The M13 link, formally Link, Cartridge, Metallic Belt, 7.62mm, M13, is the U.S. military designation for a metallic disintegrating link specifically designed for ammunition belt-fed firearms and 7.62×
UKM-2000
…belt-fed firearms and rimless 7.62×51mm NATO rounds used by NATO is a push-through design. The UKM machine gun extracts 7.62×51mm NATO rounds from open-M13 links by pushing them forward out of the link directly into the chamber for firing. The non-disintegrating closed-link metallic belt type used in the PKM…
M13 links reassembled to previously fired 7.62×51mm NATO cartridge cases
M13 links connect up to 200 7.62×51mm NATO rounds contained in an M19A1 ammunition box used to feed an M240G machine gun
A gunner from the HMS Lancaster's ship's company takes part in small arms firing at sea (SAFAS) using a pintle-mounted GPMG with an EOTech holographic weapon sight and an ejected M13 link piece and cartridge case collection bag