Named after the ammunition experimenter Dr. F.W. Mann, the Mann Device was used by the U.S. Ordnance Department and commercial ammunition manufacturers to test the characteristics of ammunition. Remington Model 03-A3 receiver and a massive Remington barrel. The barrel is stamped "C80597 / REMINGTON ARMS CO, INC., ILION, N.Y. MADE IN U.S.A. / F668-8601-63" and hand marked "RIFLE ACCURACY / CAL 30 CARB DN5050". Standard Remington receiver markings with the bolt hand numbered to the gun. Smooth pistol grip configured stock.

Excellent. The barrel has some very scattered mild handling marks and some light speckling of brown. The receiver retains 95% faded original parkerized finish with some mild edge wear. The bright, in the white, finish barrel is excellent showing no signs of having been exposed to the elements. The stock is excellent with a few minor handling marks. A unique opportunity for the M1903 collector or more importantly, the U.S. M1 carbine collector to add this to their collection.