The DM1 ammunition belt is a German reusable, non-disintegrating metallic feed belt for 7.62x51 mm NATO machine-gun ammunition. HK21 references identify DM1 alongside M13 and German DM6 belts in the HK21 feed system, while Commons and retail references document the DM1 as a loaded 7.62x51 mm belt and as a current HK21/MG3-compatible accessory in 50-round and 100-round sets.
HK21 references identify DM1 as one of the German belt options for the HK21 feed system, and retail listings document HK21/MG3-compatible DM1 belt sets.
| Compatible item | Item type | Compatibility evidence |
|---|---|---|
 | General-purpose machine gun | HK21 references identify the German DM1 belt as a compatible non-disintegrating feed belt, distinct from M13 and German DM6 disintegrating links. Sources: Heckler & Koch HK21, The HK21E Machine Gun |
DM1 is best understood as a feed-system component rather than a standalone weapon. The same HK21-family context also includes disintegrating DM6/M13 links, so the useful distinction is whether the belt remains intact after firing.
| Feed item | Documented connection | Reader note |
|---|---|---|
| DM1 ammunition belt | Non-disintegrating 7.62x51 mm metallic belt documented with HK21 and MG3-compatible use. | Reusable belt pattern; the belt remains linked after firing. |
 | German disintegrating-link counterpart documented in HK21E feed-system references. | Adjacent German belt record for the M13/DM6-style linked-belt family. |
| Cataloged firing weapon whose feed-system references name DM1, DM6, and M13 belt options. | The direct catalog relationship is compatibility, not independent conflict use by the belt itself. |
