This guide details the installation and basic operation of the extremely rare Pedersen Device, a WWI-era conversion for the M1903 Mark 1 Springfield rifle. Experts from Brownells explain how the device transforms the bolt-action rifle into a semi-automatic, blowback-operated firearm chambered in the proprietary .30 Pedersen cartridge, emphasizing the significant modifications required for the rifle and the device's unique 40-round magazine system. The rarity of surviving units is also highlighted.
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