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| The general-purpose machine gun entered service in 1969. If differs from the PK general-purpose machine gun mainly in the production of some parts. For example, the PKM barrel has no grooves like the PK barrel. The PKSM macjine gun version is placed on the L.V. Stepanov lighter design mount instead of the E.S.Samozhenkov mount. The combat characteristics of the PK, PKM, PKS and PKSM remained identical. |

| Machine gun overall lenght, mm: with folded shoulder pad with extended shoulder pad |
1,190 1,270 |
| Machine gun weight w/o ammunition load, g |
7,950 |
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