Remington 11-48 Serial Number Lookup Guide For 2026

Navigating the history of classic American firearms requires meticulous research, and performing a Remington 11-48 serial number lookup remains essential for collectors, historians, and hunters in 2026. As the direct successor to the legendary Remington Model 11, the Model 11-48 marked a monumental shift in firearm manufacturing by being the first post-World War II semi-automatic shotgun produced by the company. Understanding its production lineage requires analyzing specific stamping patterns, barrel codes, and receiver markings that date back to its introduction in 1949 and its final production year in 1968.

Historical Evolution and Design Significance of the Remington 11-48

The Remington Model 11-48 was engineered to replace the aging John Browning-designed Model 11, which used a long-recoil action derived from the Auto-5. While the Model 11-48 retained the long-recoil operating system, Remington engineers streamlined the design significantly. They introduced a stamped sheet-metal trigger plate, a newly contoured receiver that did away with the boxy rear profile of its predecessor, and extensive use of interchangeable parts across multiple gauge offerings.

Produced in 12, 16, 20, 28 gauges, and a scarce .410 bore variant, the 11-48 became a ubiquitous sight in duck blinds and upland fields throughout the 1950s and 1960s. Collectors evaluating these shotguns must look beyond basic external condition to determine exact manufacturing timelines, as parts interchangeability over the decades often muddies the historical record of individual pieces.

Step-by-Step Procedure for Locating and Interpreting Serial Numbers

Executing an accurate Remington 11-48 serial number lookup involves checking specific physical locations on the firearm and cross-referencing those numbers with factory ledgers or surviving company records.

1. Locate the Receiver Stamp: Turn the shotgun upside down and examine the bottom of the steel receiver forward of the trigger guard housing. The serial number is stamped directly into the metal frame.
2. Check for Prefixes and Suffixes: Early production models featured simple numerical sequences, while later variants incorporated letter prefixes or suffixes that denoted the gauge and year range.
3. Inspect the Barrel Date Codes: Remington stamped a two-to-three-letter barrel code on the left side of the barrel just ahead of the receiver ring. The first letter represents the month of manufacture, and the subsequent letters represent the year.
4. Cross-Reference with Factory Tables: Match the found receiver serial number against established historical manufacturing ranges to isolate the exact year of release.

Important Verification Note: Always ensure the firearm is completely unloaded and safe before beginning any inspection or disassembly. Never rely solely on barrel codes for dating, as barrels on semi-automatic shotguns were frequently swapped out by owners over decades of active use.

Comprehensive Manufacturing Date Ranges and Serial Number Matrix

Because Remington integrated the Model 11-48 into serial number blocks that sometimes overlapped with other legacy models or transitioned across shifting plant protocols, generalized tables provide the most reliable tracking mechanism. The following matrix outlines standard serial number progressions and matching chronological benchmarks for the 11-48 series.

Decoding Remington Barrel Date Codes

To verify the serial number findings, collectors utilize Remington's proprietary barrel stamping system. Located on the left rear of the barrel near the receiver junction, these codes consist of two or three letters. The first letter indicates the month, and the remaining letters correspond to the year of manufacture.

• Month Codes: M (January), A (February), C (March), L (April), K (May), P (June), W (July), Y (August), Z (September), B (October), X (November), S (December).
• Year Codes (Post-WWII Era): X (1949), Y (1950), Z (1951), WW (1952), XX (1953), YY (1954), ZZ (1955), A (1956 - Note: letters recycle), B (1957), C (1958), D (1959), E (1960), F (1961), G (1962), H (1963), J (1964), K (1965), L (1966), M (1967), N (1968).

Pros and Cons of Owning and Shooting a Remington 11-48

Evaluating the Remington Model 11-48 requires weighing its historic craftsmanship against modern operational limitations. While prized by vintage firearm enthusiasts, collectors must approach these shotguns with a clear understanding of their mechanical realities.

• Pros:
  
  
  • Exceptional pointability and lightweight handling characteristics, particularly in 20-gauge and 28-gauge models.
  • Classic post-war aesthetics featuring hand-checkered walnut stocks and deep blue carbon steel receiver finishes.
  • Highly reliable mechanical design when properly lubricated and adjusted for specific shell loads using the friction piece.
  • Generally lower market acquisition cost compared to Browning Auto-5 shotguns of the same era.
• Cons:
  
  
  • Long-recoil action requires precise placement of the brass friction ring and bronze friction piece depending on whether light or heavy loads are fired.
  • Steel receivers and older barrel metallurgy mean modern steel shot should be avoided to prevent barrel bulging or choke damage; bismuth or non-toxic alternatives must be used for waterfowl hunting.
  • Factory replacement parts are increasingly scarce, requiring custom machining or salvage sourcing for internal repairs.
  • Lack of ventilated ribs on base model variants limits modern sporting clay utility.

Expert Troubleshooting and Maintenance Tips

Maintaining a vintage Remington 11-48 in 2026 demands adherence to specific lubrication and setup protocols unique to long-recoil firearms. Unlike gas-operated or inertia-driven modern shotguns, the 11-48 relies on the entire barrel reciprocating backward against a heavy steel spring housed inside the forend.

Ensure the magazine tube is kept impeccably clean and lightly coated with high-quality gun oil—never heavy grease, which dampens recoil stroke momentum. Adjust the orientation of the friction ring according to the ammunition box instructions: position the bevel toward the muzzle for heavy field loads to slow the barrel down, and toward the receiver for light target loads to ensure full cycling. Inspect the action spring inside the buttstock periodically for rust or binding, as weak springs cause violent receiver impacts and eventual frame cracking.

Frequently Asked Questions

How do I find the manufacturing year of my Remington 11-48?

You can find the manufacturing year by locating the serial number on the bottom of the receiver and matching it against historical production tables, or by decoding the two-letter barrel stamp located on the left side of the barrel near the receiver. Serial numbers span from approximately 100,000 in 1949 up to over 700,000 when production ceased in 1968.

Can a Remington 11-48 safely fire modern steel shotgun ammunition?

No, standard Remington 11-48 barrels feature fixed chokes and older steel metallurgy that cannot withstand the pressures and rigidity of modern steel shot without risking barrel damage. Shooters should use vintage-appropriate lead loads or modern non-toxic alternatives such as bismuth for hunting waterfowl.

What should I do if my Remington 11-48 fails to eject shells?

Failure to eject is almost always caused by improper orientation of the brass friction ring on the magazine tube, excessive carbon buildup inside the forend channel, or a weak recoil spring in the stock. Clean the magazine tube thoroughly, check that the friction ring matches your load weight, and inspect internal springs for wear.

Are replacement parts difficult to find for the Model 11-48?

Major internal and external components are no longer manufactured by Remington, making secondary parts suppliers, gun shows, and online vintage firearm marketplaces the primary sources for repairs. While common pins and springs are widely available, specialized parts like complete bolts or barrels command premium collector prices.

What gauges were produced for the Remington 11-48?

The Remington 11-48 was manufactured in 12 gauge, 16 gauge, 20 gauge, 28 gauge, and a rare .410 bore variant. The 12, 16, and 20 gauge models are the most commonly encountered on the secondary market today, while the 28 gauge and .410 models are heavily sought after by specialized collectors.

Does modifying or cutting down the barrel affect the collector value?

Yes, altering the original barrel length or modifying fixed chokes drastically reduces the collector value of a Remington 11-48. Collectors prefer original configurations with matching serial numbers and unaltered barrel lengths matching factory specifications.