Below is a couple of video links for a revolutionary weapon mod in the era it was made. This device was used to convert a 30-06 Springfield 1903 bolt action rifle to a semi auto .30cal pistol caliber rifle by the soldiers in the field. The modification took only a few minutes to complete and could be easily switched back to the bolt action 30-06 whenever the need required.
Installing and shooting the pedersen device.
Installing and shooting the pedersen device.