U.S. Nomenclature

by
posted on November 20, 2014
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
qanda2015_fs.jpg

Q: I noticed in the "Forgotten Guns of D-Day" (June 2014, p. 42) that the bolt-action Springfield rifle was designated as the "M1903" or "M1903A3." But in other articles, I have seen it called a "U.S. Rifle, Caliber .30, Model of 1903." So why are there different names?

A: Before April 11, 1922, the U.S. Army Ordnance Dept. named all types of ordnance-including small arms-by identifying what is was, its ammunition and then the year of adoption. For example, the '03 Springfield was the "United States Rifle, Caliber .30, Model of 1903." In 1922, Ordnance went to a new system that included the name of the gun, the caliber and then an "M" followed by the year of adoption. Major changes would be represented in "Marks."

undefinedOn July 30, 1925, the Ordnance Dept. went to a briefer description of the item, its chambering, then a letter "M" and its number in order of adoption. Thus, John Garand's rifle became the "U.S. Rifle, Cal. .30, M1." If a design was already in service, it did not get a new number. Major changes would get a suffix, i.e., "Submachine Gun, Cal. .45, M1A1." Experimental or developmental guns were given a "T" prefix and an "E" suffix, i.e., T3E2, until May 8, 1958, when the prefix went to "XM." If the design was adopted, the "X" was simply dropped.

-Mark A. Keefe, IV, Editor In Chief

Latest

Savage 110 Trail Blazer rifle in 22 Creedmoor
Savage 110 Trail Blazer rifle in 22 Creedmoor

Review: Savage 110 Trail Blazer Rifle in 22 Creedmoor

Savage’s new 110 Trail Blazer rifle offers top-shelf performance at entry-level pricing.

I Carry: Springfield Armory Hellcat Pro 9 mm Pistol in a PHLster Holster

In this week's episode of "I Carry," we have a Springfield Armory Hellcat Pro 9 mm pistol with a Meprolight MPO Pro-S red-dot sight carried in a PHLster Skeleton kydex holster.

The Armed Citizen® Jan. 16, 2026

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

FN Releases New SCAR Rifles & QD Suppressors

FN made headlines when it announced it would discontinue its legacy SCAR rifle platform in 2025, but for 2026, the design is back and better than ever.

Review: KelTec SUB2000 GEN3 In 10 mm

At long last, KelTec has answered customer requests for a more potent version of their folding pistol-caliber carbine with its SUB2000 GEN3 chambered for the 10 mm Auto cartridge.

Lowering Decibels For Less: Lyman's New Sonicore Suppressor Lineup

As 2026 shapes up to be the "Year Of The Suppressor," firearm manufacturers are racing their new designs to market, and one of the most affordable options out of the gate is Lyman Products' Sonicore line of suppressors.

Interests



Get the best of American Rifleman delivered to your inbox.