The rifle must be a rifle that was issued by the U.S. Armed Forces and be in as - issued condition. Permitted rifles include Caliber .30 U. S. Model 1903 Springfield rifle series, Caliber .30 U. S. Model 1917 rifle, Caliber .30 U. S. M1 Garand rifle, Caliber .30 M1941 Johnson rifle, U. S. Krag rifle and U.S. Carbine Caliber .30 M1,except that Caliber .30 U. S. Model 1903 Springfield rifles manufactured by Springfield Armory with serial numbers of 810,000 or lower or by Rock Island Arsenal with serial numbers of 285,506 or lower may not be used in any CMP sanctioned competition. Commercial rifles of these types and calibers are not permitted in matches for "as-issued" U. S. Military Rifles.

(1) These firearms must be as issued by the U.S. Armed Forces, with standard stock and leather or web sling.

(2) Trigger pulls may not be less than 4.5 pounds, except that the M1903 Springfield and M1941 Johnson must have a trigger pull of not less than 3.5 pounds.

(3) Rifles must conform to the weight and dimensions of the standard issue service rifle.

(4) Only U.S. Government issue parts or non-U. S. Government or commercial parts of the exact same weight and dimensions may be used.

(5) Rifles may be accurized only by the careful assembly of standard parts. "NM" parts may not be used in the rifle.

(6) Rebarreling with a barrel of as -issued dimensions is permitted. Replacement barrels must have the same exact contours and cuts as the as -issued barrel.

(7) The use of shims made of any material is prohibited. The presence of fiberglass, epoxy, glue or any other filler is prohibited. Laminated stocks and stocks made of synthetic materials are prohibited.

(8) All "as-issued" rifles except Caliber .30 Carbines and U. S. Krag rifles must be chambered for the .30-06 cartridge. No rifles chambered for the 7.62mm NATO (.308) cartridge may be used.

The rifle must be a rifle that was issued by the Armed Forces of a country other than the U. S. and be in "as-issued" condition. All as-issued foreign military rifles must be manually operated bolt-action or straight-pull rifles. Semi-automatic or fully automatic rifles are not permitted.

(1) These firearms must be as issued by the foreign government, with a standard stock and leather or web sling.

(3) Rifles must conform to the weight and dimension specifications of the standard issue service rifle.

(4) Only government issue parts or commercial parts of the exact same weight and dimensions may be used.

(5) Sights must be of the same types that were on rifles issued to regular military personnel. Special purpose sights designed for sniping or target practice are not permitted.

(8) Shims made of wood, fabric, paper, metal or other similar material, of types that were originally installed by military arsenals in these rifles and that are placed between the stock and the action, barrel or trigger assembly are permitted.

No other modifications or alterations of the "as -issued" rifle such as the use of glass or epoxy bedding in any location are permitted. The use of synthetic or laminated stocks is not permitted unless such stocks are original government issue.