It was a huge hit, and when General Pershing saw it in France, he demanded it. The '03 Mark I was designed to be used with the device, and it featured ejector ports cut in the receiver and stock. The device would have been issued in a metal case, with magazines in another pouch, so soldiers could almost instantly convert their rifles from long range and accurate to short range and high rate of fire quickly in the field. In a way, it was the precursor of the assault rifle since it had both short range firepower and longer range capability. Over 160,000 were made, but arrived too late for the war. After a period of storage, the Army decided they were obsolete and nearly all were destroyed. Only about 100 Pedersen devices survive, including this one in the NRA Sporting Arms Museum at Bass Pro Shops in Springfield, Mo.