Field Guide 03 · Militaria
The M1 Garand Field Reference
John Garand's gas-operated semi-automatic was the first standard-issue self-loading service rifle in the world — "the greatest battle implement ever devised," in Patton's words. This guide covers the four U.S. manufacturers and their serial ranges, how to date a barrel and read drawing numbers, the stock cartouches that identify original inspection, and the arsenal rebuild marks that explain why so many Garands are honest mixmasters.
Fifteen years of trials to the standard rifle
Garand began work at Springfield Armory in the 1920s; his gas-operated design beat the Pedersen, Thompson, and Bang competitors through a decade of trials. The story nearly took a different caliber: the .276 (7mm) Garand won the 1931-32 trials decisively, but Chief of Staff General Douglas MacArthur vetoed the change — enormous stocks of .30 M1 ball ammunition already existed — and on August 3, 1933 the .30-caliber T1E2 was type-classified as the "U.S. Rifle, Caliber .30, M1." It was standardized on January 9, 1936, replacing the M1903 Springfield (Wikipedia).
The Garand remained in service through the transition to the M14, adopted in 1957. That transition also helps explain why the Navy pursued its own later 7.62 NATO Garand program rather than immediately replacing every rifle (Canfield's service and Navy history).
- 1932–33
.276 trials won by Garand; MacArthur orders .30 caliber — T1E2 becomes the M1.
- Jan 9, 1936
M1 standardized; Springfield Armory production begins September 1937.
- 1940
Gas-trap muzzle replaced by gas-port design; early rifles recalled and retrofitted.
- 1941
Winchester receives "educational" contract; first Winchester deliveries January 1941.
- 1942–45
Peak wartime production; serials pass 4 million by war's end.
- 1953–57
Korean War era: International Harvester and Harrington & Richardson join production.
- 1957
M14 adopted; Garands remained in service during the subsequent transition (service history).
- 1950–59
Beretta license-builds ~100,000 Garands in Italy using Winchester tooling.
The manufacturers at a glance
Four makers built U.S. military M1s — the government arsenal, one WWII commercial maker, and two Korean War-era contractors — plus license production in Italy. Each has its own serial blocks.
| Manufacturer | Years | Serial blocks | Qty |
|---|---|---|---|
| Springfield Armory | 1937–45, 1952–57 | 1 – 3,888,081; 4,200,001 – 6,099,905 | ~4.0M |
| Winchester | 1941–45 | 100,001 – 165,500; 1,200,001 – 2,536,000 | ~513,000 |
| International Harvester | 1953–56 | 4,400,000 – 4,660,000; 5,000,501 – 5,278,245 | 337,623 |
| Harrington & Richardson | 1953–56 | 4,660,001 – 4,800,000; 5,488,847 – 5,793,847 | 428,600 |
| Beretta (Italy) | 1950–59 | License production | ~100,000 |
| Rock Island Arsenal | 1950s | X2,655,982 – X2,656,148 | ~1,167 |
Assigned ranges per the NPS production records; Springfield and Winchester blocks intermix as production needs increased, and NPS notes all serial numbers are approximate. Springfield made a further 637,420 rifles 1952–57. Beretta and Breda also built Garands in Italy; the commercial "Springfield Armory, Inc." of Geneseo, IL (1982+) is an unrelated company whose receivers run 7,000,000 and above. Sources: NPS Springfield Armory; Wikipedia.
Maker profiles
The government arsenal · 1937–1957 · ~4.0 million
Springfield Armory
- Serials
- 1 – 3,888,081 (WWII); 4,200,001 – 4,399,999 (1952–54); 5,000,000 – 5,000,500; 5,278,246 – 5,488,246; 5,793,848 – 6,099,905
- Cartouches
- SA/GHS, SA/EMcF, SA/GAW, SA/NFR (WWII production)
The vast majority of all Garands — production from serial 1 in 1937 through 6,099,905 in 1957, interrupted only by postwar drawdown. Sub-1,000,000 receivers date 1937 to late 1942; 1,000,000–3,888,081 covers 1943–45; post-war production resumed in the 4.2M range around 1952 and reached 6.1M by 1957. The NPS monthly serial tables (credited to Scott Duff's research) allow dating a Springfield receiver to the month.
WWII commercial maker · 1941–1945 · ~513,000
Winchester
- Serials
- 100,001 – 165,500; 1,200,001 – 2,536,000
- Cartouches
- WRA/RS, WRA/WB, WRA/GHD
Winchester's "educational" contract (placed after war broke out in Europe) delivered its first M1s in January 1941. Winchester blocks are distinct from Springfield's WWII blocks, so a Winchester receiver is almost certainly wartime. Beretta later used Winchester tooling for Italian license production. WRA-marked parts on any Garand point to Winchester manufacture or Winchester parts used in rebuilds.
Korean War contractor · 1953–1956 · 337,623
International Harvester
- Serials
- 4,400,000 – 4,660,000; 5,000,501 – 5,278,245
- Receiver marks
- Distinctive "Gap Letter" and "Postage Stamp" logo variations
The tractor company's Louisville plant built Garands to expand Korean War production. IHC receivers show distinctive logo variations collectors classify as "Gap Letter" and "Postage Stamp" — with some receivers made by Springfield Armory to supplement early production. IHC rifles used a mix of IHC, Springfield, and Harrington & Richardson parts, making them the ultimate mixmaker study.
Korean War contractor · 1953–1956 · 428,600
Harrington & Richardson
- Serials
- 4,660,001 – 4,800,000; 5,488,847 – 5,793,847
The Worcester, Massachusetts arms maker returned to military production with the Korean War. H&R rifles are generally the most standardized of the post-war makers and are often found in near-new condition, having gone from production to storage without wartime use. HRA-marked parts are common on post-war rebuild rifles of every maker.
License production · 1950–1959 · ~100,000
Beretta & Breda (Italy)
- Serials
- Italian commercial numbering — not in U.S. ranges
Keep foreign manufacture, postwar service and commercial assembly as separate research questions. Establish an unfamiliar receiver marking from an appropriate manufacturer- and country-specific reference before assigning a maker, contract, production origin or CMP provenance.
Serials & dating
The receiver serial — on the heel behind the rear sight, with the maker's name above it — is the rifle's identity and primary dating point. Quick rules of thumb by range:
| Serial range | Maker | Period |
|---|---|---|
| 1 – 100,000 | Springfield | 1937 – late 1940 (early, scarce) |
| 100,001 – 165,500 | Winchester | 1941 – mid 1942 |
| 165,501 – 1,200,000 | Springfield | 1940 – early 1943 |
| 1,200,001 – 1,357,473 | Winchester | 1942 – early 1943 |
| 1,357,474 – 2,536,000 | Springfield & Winchester (interleaved) | 1943 – 1945 |
| 2,536,001 – 3,888,081 | Springfield | 1944 – 1945 (WWII's end) |
| 4,200,001 – 4,399,999 | Springfield | 1952 – 1954 |
| 4,400,000 – 4,660,000 | International Harvester | 1953 – 1954 |
| 4,660,001 – 4,800,000 | Harrington & Richardson | 1953 – 1954 |
| 5,000,501 – 5,278,245 | International Harvester | 1954 – 1955 |
| 5,278,246 – 5,488,246 | Springfield | 1954 – 1955 |
| 5,488,847 – 5,793,847 | Harrington & Richardson | 1955 – 1956 |
| 5,793,848 – 6,099,905 | Springfield | 1955 – 1957 (final production) |
Simplified from the NPS assigned-range records; Springfield and Winchester blocks intermix and NPS notes all serials are approximate. For month-level dating of Springfield and Winchester receivers, use the NPS monthly tables (credited to Scott A. Duff's research) or Duff's reference books. Sources: NPS; Crate Club.
Barrel dating & drawing numbers
Many Garand barrels carry their actual month and year of manufacture — the best cross-check on whether a barrel is original to the receiver. Lock the operating rod to the rear and read the right side of the barrel in the gap between the handguard and receiver: a stamp like SA 3-45 means Springfield barrel, March 1945.
A barrel dated within 90 days of the receiver's production date is likely original; a barrel dated years later indicates a rebuild-era replacement. On parts, drawing numbers and their revisions sequence a component in time — e.g. bolt D28287-12SA (drawing D28287, revision -12, made by Springfield) — with lower revisions earlier. Early WWII operating rods were "uncut"; the relief cut was added later, and many uncut rods were cut during overhauls, so an uncut op-rod marks a very early or untouched rifle (Crate Club).
| Clue | Where | What it tells you |
|---|---|---|
| Barrel date SA 3-45 | Right side of barrel, behind handguard | Manufacturer + month/year of barrel |
| Drawing number D28287-12SA | Bolt top; trigger housing side | Part design and revision — earlier/later production |
| Heat lot code | Receiver leg, bolt | Steel batch — specialist research tool |
| Uncut operating rod | Relief cut at handle corner | Very early or unmolested WWII configuration |
| Stamped vs. milled trigger guard | Trigger housing | Milled with hole = early WWII; stamped = late/post-war |
Stock cartouches — who inspected it, and when
Original-factory Garands carry an inspection cartouche on the left side of the stock: the maker's initials over the inspecting officer's, often boxed, accompanied by the crossed-cannons Ordnance wheel and a circled P proof on the grip. Because stocks wear and get swapped, cartouches date the stock, not the rifle — but a cartouche matching the receiver's period is a strong originality signal.
| Cartouche | Inspector | Maker | Serial range | Period |
|---|---|---|---|---|
| SA/GHS | Gilbert H. Stewart | Springfield | ~78,000 – 588,000 | Oct 1940 – Apr 1942 |
| SA/EMcF | E. McFarland | Springfield | ~665,000 – 2,092,000 | Jun 1942 – Oct 1943 |
| SA/GAW | George A. Woody | Springfield | ~1,978,000 – 3,627,000 | Aug 1943 – Mar 1945 |
| SA/NFR | Norman F. Ramsey | Springfield | ~3,272,000 – 3,888,081 | Nov 1944 – Nov 1945 |
| WRA/RS | Robert Sears | Winchester | 100,101 – 120,000 | Jul 1940 – Jul 1941 |
| WRA/WB | Waldemar Broberg | Winchester | 120,000 – 1,210,000 | Jul 1941 – Jun 1942 |
| WRA/GHD | Guy H. Drewry | Winchester | 1,210,000 – 2,536,000 | Jun 1942 – Jul 1945 |
Identifications and serial ranges per the cartouche reference compiled by Alec Corapinski; the reference notes Woody's stamps remained in racks after his August 1944 death, and post-war Springfield inspection cartouches (SA/SHM, SA/SPG, SA/JLG) belong to the rebuild program covered below. A small Ordnance wheel (.188") on the bottom of the pistol grip accompanies several WWII Springfield cartouches. Source: M1 Garand Stocks reference.
Arsenal rebuild marks
Ordnance regulations required the rebuilding facility to stamp its identity on the stock — usually the left side. A rebuild stamp means the rifle went through that facility, though not necessarily a full rebuild: near-new rifles were sometimes inspected, cleaned, and stamped. Overseas installations didn't have to stamp at all, so absence of marks proves nothing.
| Mark | Facility | Period / notes |
|---|---|---|
| sa/shm | Springfield Armory | Circa Nov 1945 – Aug 1947 (Col. S. H. McGregor) |
| sa/spg | Springfield Armory | Postwar inspections to ~1950 (Stanley P. Gibbs) |
| sa/jlg | Springfield Armory | Jul 1950 – May 1953 (Col. J. L. Guion) |
| sa (boxed) | Springfield Armory | Rebuild stamp after new production resumed |
| sa-52 | Springfield Armory | 1952 overhauls — receiver, behind rear sight |
| ria/fk | Rock Island Arsenal | 1941 – 1946 (Frank Krack) |
| ria/eb | Rock Island Arsenal | 1947 – 1958 (Elmer Bjerke) |
| aa | Augusta Arsenal (GA) | Usually with letter suffix |
| ba | Benicia Arsenal (CA) | Boxed, over inspector's initials |
| hod | Hawaii Ordnance Depot | Left side of stock |
| saa | San Antonio Arsenal (TX) | Letter prefix common |
| og / ogek | Ogden Arsenal (UT) | "o.g.e.k." boxed = Elmer Keith |
| an / a4 | Anniston Army Depot (AL) | Often with letter suffix |
| mr | Mt. Rainier Ordnance Depot (WA) | Left side of stock |
Post-war overhaul proof is a square-blocked "P" on the pistol grip, distinct from the factory's circled P. 1960s rebuilds were often hand-etched with an electric pen on the right receiver leg, usually with month and year. Source: American Rifleman.
Service history · U.S. Navy
The Navy's 7.62 NATO Garands
The Navy retained serviceable Garands while seeking ammunition commonality with the new 7.62 NATO system; its conversion project received funding in 1959 and involved H.P. White Laboratories in 1962 (Bruce Canfield, American Rifleman). The resulting rifles received Navy MK 2 MOD 0 and MK 2 MOD 1 designations rather than simply becoming a new factory M1 production run (Steve Rutledge, CMP: The 7.62MM Garand).
| Designation | Historical configuration | Collector context |
|---|---|---|
| MK 2 MOD 0 | Original .30-06 barrel adapted with a chamber insert; bushing-retention failures were documented in military evaluation (CMP research). | AMF and H&R were conversion contractors; markings and surviving paperwork must be evaluated together (CMP research). |
| MK 2 MOD 1 | Purpose-made 7.62 NATO barrel, replacing the insert approach; Springfield Armory produced Navy barrels in 1965–1966 (Canfield). | Includes standard-grade and Navy match-conditioned examples; not every MOD 1 is a match rifle or trophy award (Canfield). |
| Grade A / Grade B | Navy match classifications applied to accurized rifles, with A or B marks described beneath the stock's pistol grip (Canfield). | A stock mark alone is not a complete provenance record; investigate the specific rifle's configuration and documents, not just the letter. |
Original maker versus later conversion contractor
The receiver still records its original manufacturing history, while the Navy conversion is a later event involving AMF or Harrington & Richardson and, for MOD 1, a purpose-made barrel (CMP research). This distinction matters because an old receiver date does not date the later 7.62 configuration (Canfield's conversion chronology).
Markings and the limits of authentication
CMP's historical report describes 7.62 NATO or 7.62MM barrel markings and some AMF/H&R markings, while warning that contractor inscriptions were not universal (The 7.62MM Garand). The same report emphasizes the difficulty of authenticating MOD 0 rifles and the value of supporting records; no single stamp should be treated as a universal authenticity test (CMP research).
“Navy .308” is shorthand, not a provenance certificate
The official military chambering is 7.62×51mm NATO; .308 Winchester is its closely related commercial counterpart, introduced separately in 1952 (.308 Winchester history). A modern commercial .308 Garand is not automatically a Navy MK 2, and this guide does not establish ammunition suitability for any individual rifle.
Historic insert-equipped rifles warrant specialist inspection before any use. Do not infer chambering, condition or safe ammunition from a seller's description, a receiver serial, or this historical guide.
Research note: published conversion totals and some match-grade percentages differ between accounts. This guide deliberately does not present a single precise total as settled; compare the CMP historical report with Canfield's account when researching an individual rifle.
Garand calibers and where they came from
The standard U.S. service rifle used .30-06; the Navy's MK 2 rifles used 7.62 NATO (Navy service history). The linked entries separate those service chamberings from commercial .308 terminology and the earlier .276 trial-cartridge story (.308 history; NPS trial-rifle history).
- .30-06 Springfield: U.S. service cartridge, 1906; developed from .30-03 (historical reference).
- 7.62×51mm NATO: T65 development and NATO standardization, 1954 (historical reference).
- .308 Winchester: commercial introduction, 1952; distinguish from Navy provenance (historical reference).
- .276 Pedersen: trial-cartridge context, not the standard production M1 chambering (NPS historical reference).
Meet the Civilian Marksmanship Program
The Civilian Marksmanship Program (CMP) is a federally chartered nonprofit focused on marksmanship education, firearms safety, competition and youth programs. Its direct lineage reaches the 1903 National Board for the Promotion of Rifle Practice, and Congress established the present corporation in 1996 (CMP history and mission).
For a collector, the CMP's The 7.62MM Garand is a useful historical reference, especially for distinguishing Navy variants and evaluating provenance. Keep a research file with any original CMP certificate, invoice, inspection description and correspondence you possess; those document the CMP transaction, not automatically every earlier event in a rifle's service life.
Independent collector reference; no CMP affiliation or endorsement is claimed. These links introduce the organization's education and historical research, not a firearm offer or ordering service.
Collector notes for the bench
Reading a Garand honestly
Most Garands in circulation are arsenal rebuilds or CMP service grades — honest rifles with mixed parts from decades of overhaul. That's not a defect; it's the rifle's service history. The collector questions are: which receiver (maker + serial = date), which barrel (date stamp within 90 days of the receiver suggests original), which stock (cartouche matching the receiver's period), and what rebuild marks say about its later life.
Rarity tiers
Gas-trap Springfields (below ~serial 60,000, unconverted) are museum-grade rarities. Early Winchesters (100,001–120,000 with WRA/RS stocks), uncut op-rods, and National Match rifles sit at the top of the market. Standard post-war H&R and IHC rifles in unissued condition are affordable and often excellent; rebuilt WWII Springfields are the bread and butter of the hobby (Wikipedia; American Rifleman).
Authentication checklist
- Receiver serial in the documented range for its maker — check the interleaved Springfield/Winchester blocks carefully.
- Barrel date within ~90 days of the receiver date for an original pairing.
- Stock cartouche consistent with the receiver's maker and period (SA/GHS → SA/NFR, WRA/RS → WRA/GHD).
- Circled P on the grip (factory) vs. boxed P (rebuild) — tells the proof history.
- Drawing numbers and revisions on bolt, trigger housing, and op-rod consistent with the receiver's date.
- Rebuild stamps read as history, not defects — but a "rebuild" stamp on a pristine rifle may just mean inspection.
- Italian Beretta/Breda rifles identified by PB marks and Italian proofs, not U.S. serial ranges.
Value drivers
Matching original barrel, cartouche-matching stock, and early features (uncut op-rod, milled trigger guard, gas-trap era) are the big levers. Import marks and replacement stocks trade at discounts. For shooters, the CMP remains the primary source and reference point for grading.
The 7.62mm Garands
Read the Navy MK 2 MOD 0 / MOD 1 section for the important distinction between insert-equipped and purpose-barreled rifles. Historic service provenance does not itself establish present condition or safety; compare the markings, configuration and documents with CMP's historical research.
A legal note
This guide is a research reference, not a sales catalog. Nothing on this page is an offer to sell a firearm. Any transfer of a firearm must be conducted through a licensed firearms dealer in compliance with all applicable federal, state, and local law.
Sources & further reading
- Springfield Armory National Historic Site (NPS) — U.S. M1 Garand Rifle ProductionAssigned serial ranges by manufacturer and the monthly Springfield/Winchester production tables (credited to Scott A. Duff, The M1 Garand: World War II). nps.gov
https://www.nps.gov/spar/learn/historyculture/u-s-m1-garand-rifle-production.htm - Wikipedia — M1 GarandDevelopment and adoption history, manufacturer production totals, technical specifications, service timeline. en.wikipedia.org/wiki/M1_Garand
https://en.wikipedia.org/wiki/M1_Garand - American Rifleman (NRA) — "M1 Garand Rebuilds: History & Markings"The rebuild-facility marking tables: Springfield, Rock Island, and the depots, with periods and locations. americanrifleman.org
https://www.americanrifleman.org/content/m1-garand-rebuilds-history-markings/ - M1 Garand Stocks — Cartouche reference (Alec Corapinski)Inspector cartouche identifications with serial ranges and stamp dimensions for SA and WRA production. myplace.frontier.com/~aleccorapinski/id5.html
https://myplace.frontier.com/~aleccorapinski/id5.html - Crate Club — "How to Date an M1 Garand"Receiver and barrel dating method, drawing numbers, heat lots, and the 90-day originality rule. crateclub.com
https://crateclub.com/blogs/loadout/how-to-date-an-m1-garand-a-comprehensive-guide-for-collectors - American Rifleman (NRA) — "The International Harvester M1 Garand"IHC production history and receiver logo variations. americanrifleman.org
https://www.americanrifleman.org/content/the-international-harvester-m1-garand-a-new-rifle-for-the-nuclear-age