This is a Model 1903 Mark I with S stock Springfield Armory 1106377.

The barrel of this rifle is SA barrel dated 3-20 with visible proof marking. The muzzle reading is 0 and the throat reading is 2. The Bore of this rifle is in okay condition with some rust/pitting. The barrel is a Four-grooved barrel. A "H" is stamped on the bayonet lug. A proof mark and RIA/FK AND RA-P cartouches appear on the stock. There is a punch mark on the bolt handle.

Other Information: "During World War I, the United States secretly developed the Pedersen device attachment for the M1903 Springfield rifle that allowed it to fire a .30 caliber (7.62 mm) pistol type cartridge in semi-automatic mode.This attachment was developed to allow an infantryman to convert "his rifle to a form of submachine gun or automatic rifle" in approximately 15 seconds." This rifle has the cutout where the magazine would have attached.

Disclaimer: ******(This does NOT give the rifle the ability to be full auto. )*******

Production of the Pedersen device and modified M1903 rifles started during 1918.

Notes from the Armorer:

 Mark I rifle. Has all mark I parts and Mark I stock. High hand guard, Curved handle, J5 bolt. "RIA/FK and "RA-P" cartouches on stock.

Sold as is.

All photos can be viewed here.