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Norwegian Kongsberg .22 LR Conversion Unit Training Set made for the Norwegian Kongsberg Colt Model 1914

Norwegian Kongsberg .22 LR Conversion Unit made for the Norwegian Kongsberg Colt Model 1914 utilizing a sub-caliber .22 LR barrel. Premier Lieutenant Kvaal designed conversion kit consisting of a barrel and seven cartridge holders for .22 LR rounds for the Kongsberg Colt M / 1914.  This kit was designed to fire .22 LR cartridges in the same gun with the same magazines. This was accomplished by making a cartridge holder to hold a .22 LR caliber cartridge.  The cartridge holders have same outer diameter as the original .45 caliber cartridge. The Kongsberg .22 LR barrel was drilled so it was not centered, this way you could still use it with the original Kongsberg firing pin and slide. The barrel is marked with crowned K on the back edge. The original cartridges were also marked with the crown K. The barrel does not have a serial number.

Premier Lieutenant Kvaal received a royalty from KV for each set produced. Production started in 1928. Such sets were delivered from KV to the Armed Forces even after World War II.
 

Premier Lieutenant Kvaal devised this conversion kit for the Kongsberg Colt M/1914 so that one could shoot cartridges with caliber .22 LR in the same gun with the same magazines that are used for .45 cailber ammunition.

Note how the .22 cartridge holders are drilled through.

The Kongsberg .22 LR barrel was drilled so it was not centered, this way you could still use it with the original Kongsberg firing pin and slide. The barrel is marked with crowned K on the back edge.

The Kongsberg .22 LR barrel with cartridge holder and .22 LR cartridge.

The Kongsberg .22 LR barrel with cartridge holder inserted.

The Kongsberg .22 LR barrel with cartridge holder and .22 LR cartridge inserted.

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