MP40 Collar Nut (Six Sided)

The MP38 / MP40 Collar Nut (Six Sided) secures the barrel assembly to the receiver and is one of the characteristic components found at the front of the German MP38 and MP40 submachine guns. The six-sided design allows the collar nut to be tightened and removed using the appropriate wrench while providing a secure connection between the barrel and receiver.

This replacement collar nut is manufactured to the original dimensions and replicates the late wartime six-sided pattern used on many MP40s. It is compatible with both MP38 and MP40 barrel assemblies that use this style of collar nut, making it suitable for restoration projects and replacing worn or damaged originals.

Precision machined from high-quality steel, the collar nut features clean threads and accurate external dimensions to ensure proper engagement with the receiver. It is an excellent replacement for collectors, restorers, and armourers seeking a reliable component that closely matches the original military design.