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Remington Model 31
Remington Model 31
Remington Model 31
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The Remington Model 31 is a pump-action shotgun that competed with the Winchester Model 1912 for the American sporting arms market.[1] Produced from 1931 to 1949, it superseded the John Pedersen-designed Models 10 and 29, and the John Browning-designed Model 17. It was replaced by the less expensive to manufacture Model 870 in 1950.[2]

Key Information

History

[edit]

While the Remington Model 17 enjoyed some success, a solid, 12-gauge featuring side-ejection was needed to compete with Winchester. C.C. Loomis sized up the Model 17 and adapted it for side ejection. The Model 31 was Remington's first side ejecting pump-action shotgun. Stocks were walnut with checkered walnut forend and later changed to a ribbed forend. The Model 31 was made in three gauges with 121,000 12-gauge models made and 75,000 16- and 20-gauge examples also produced. The Federal Bureau of Investigation acquired one Model 31 per office in 1935 in response to the Kansas City Massacre.[3] The model 31L was a lightweight version featuring an aluminum receiver and trigger housing.

During World War II Remington produced a Model 31 riot gun for military use. These were stamped "U.S. Property" on the left side of the receiver and had an approximate serial number range of 51000–63000. Except for a single prototype, no Model 31 trench guns were produced.[4]

Despite being well received, sales still lagged far behind the Winchester. Remington went back to the drawing board and designed the Model 870; this shotgun matched the durability of the Model 12 at a significantly lower cost. Despite the overwhelming success of the 870, many shotgun connoisseurs consider the Model 31 to be the ne plus ultra of pump shotguns with its "ball-bearing" slide action.[5]

The Model 31 was later used as a basis for the Mossberg 500 and related shotguns. The Mossberg is simplified and cheaper to produce. Notable differences are the use of a two-piece bolt with separate locking piece as well as a significantly simplified barrel mounting system. Further, the bolt locks into a barrel extension rather than directly to the receiver.

References

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Remington Model 31

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from Grokipedia
The Remington Model 31 is a pump-action manufactured by Company from 1931 to 1949, notable as the firm's first design featuring side-ejection of spent shells, which improved handling for left-handed shooters and those using scopes. Designed primarily by C.C. Loomis with contributions from O.H. Loomis and C.H. Barnes, it was developed to compete directly with the popular Model 12 in the American sporting arms market, addressing shortcomings in Remington's earlier pump-action models like the Model 10, 17, and 29. Initially offered in 12-gauge with 26- or 30-inch barrels, production expanded in 1933 to include 16- and 20-gauge variants, utilizing two frame sizes—a larger one for 12-gauge and a smaller for 16- and 20-gauge—with a total of 189,243 units produced across 35 variations. Key features included a takedown design allowing barrel removal via a knurled nut on the magazine tube, a 3.5-inch slide action stroke for reliable cycling, and a safety located at the rear of the , making it versatile for , , and applications. Available in multiple grades such as the standard 31A, tournament-grade 31D, police-grade 31P, and riot-grade 31R with a shortened 20-inch barrel, it catered to diverse users, including procurement during where 8,992 units were supplied to the U.S. Government, some with aluminum frames introduced around 1941 to conserve steel. Despite its innovative dual-action bars for smoother operation and reputation for durability, the Model 31 was discontinued in 1949 due to rising production costs amid post-war economic shifts, ultimately succeeded by the more cost-effective Remington Model 870. Today, it remains a collectible prized for its craftsmanship and historical significance in American shotgun design.

Development

Design Origins

The Remington Model 31 pump-action originated from efforts by to modernize its lineup of repeating shotguns in the late , addressing limitations in earlier bottom-ejecting designs. The primary designer was Remington engineer Crawford C. Loomis, who led the development of the innovative pump-action mechanism starting in 1929, with contributions from O.H. Loomis and C.H. Barnes. This work built on the foundation of prior Remington models, particularly the Model 10 (introduced in 1908) and Model 17 (1921), both bottom-ejecting pump-actions originally designed by John Pedersen. Loomis evolved these designs by adapting the Model 17's compact layout for side-ejection, marking Remington's first such pump-action and positioning it as a direct competitor to the Winchester Model 12. Key engineering challenges included improving ejection reliability to prevent spent shells from falling into underbrush or accumulating dirt in the action—issues common with bottom-ejection—and enhancing overall action smoothness for faster cycling in field use. The side-ejecting system allowed shells to exit predictably to the right, facilitating quicker reloading and reducing jams, while a redesigned carrier and bolt mechanism contributed to the gun's renowned fluid operation, often described as "ball-bearing smooth." Initial prototypes emerged in early following intensive development, with Loomis filing a foundational (US 1,763,714) on June 7, 1927, which detailed an improved shell transfer system using a pivotal carrier and side-port ejection to boost reliability in repeating shotguns. Issued on June 17, , the emphasized sheet-metal components with guiding surfaces to minimize and ensure consistent shell feeding, directly influencing the Model 31's final configuration. These innovations resolved Pedersen-era shortcomings, such as inconsistent ejection under rapid fire, paving the way for the model's introduction.

Introduction

The Remington Model 31 was officially introduced in 1931 as ' first side-ejecting pump-action repeating shotgun, positioning it as a premium competitor to established models in the American sporting arms market. Marketed for its reliable performance and innovative design, the Model 31 targeted hunters pursuing upland game and sport shooters engaged in skeet and trap competitions, emphasizing ease of use in field conditions. At launch, the base model retailed for approximately $48.95, reflecting its high-quality construction during the early years of the , when affordability was a key concern for buyers. Early endorsements praised its exceptionally smooth , featuring a lighter and shorter stroke compared to rivals like the Winchester Model 12, which contributed to its appeal among discerning shooters seeking fluid operation without excessive effort. Initial production of the Model 31 took place at Remington's facility in , with the first units shipping to distributors in August 1931 under the guidance of designer C.C. Loomis. This setup allowed for rapid scaling to meet demand, starting with the 12-gauge configuration and adding 16- and 20-gauge variants in 1933.

Design and Features

Mechanism

The Remington Model 31 employs a pump-action mechanism in which the fore-end is manually reciprocated to cycle the action, unlocking the breechblock, extracting and ejecting the spent shell, cocking the hammer, and feeding a fresh shell from the tubular magazine into the chamber. The cycle begins with the slide release, which disengages the action bar lock—either by pressing a release button on the right side of the receiver or trigger guard, firing the weapon, or retracting the hammer—allowing the fore-end to move rearward and fully retract the bolt. As the bolt retracts, it extracts the spent shell via dual extractors and engages the carrier, which is pivoted in the receiver and spring-loaded to lift the next shell from the tubular magazine (holding up to four rounds) onto the carrier's shell-lifting surface. Upon forward movement of the fore-end, the action bars guide the bolt forward, chambering the shell as the carrier dog releases it into alignment with the bore; the bolt then locks securely via a cam lug on the action bar seating into a camming groove in the receiver or barrel extension, ensuring rigid lockup against the receiver shoulder. A defining feature of the Model 31 is its side-ejection system, which expels spent shells through an opening on the right side of the receiver, directed away from the shooter for enhanced usability. This design, achieved via a spring-loaded ejector seated in a T-slot at the top of the receiver or fixed in the barrel extension, imparts a forceful ejection assisted by the carrier's flap, preventing jams and allowing efficient clearance even in rapid cycling. The side-ejection proved advantageous for right-handed users, as it directs to the right, minimizing interference with low-mounted or operations in low-light conditions where bottom-ejected hulls might otherwise accumulate in the or underfoot. Shooters favored this over bottom-ejection designs, contributing to the Model 31's competitiveness against rivals like the Model 12. Internally, the mechanism relies on precision-machined, hand-fitted components for its renowned smooth operation, often described as clock-like in reliability and feel. The carrier, cam-operated by the , manages shell transfer with a spring-loaded and follower from the spring, while the ejector ensures consistent expulsion. The trigger group, housed in a removable plate, integrates the trigger, sear, with double hooks, and mechanism within the , all fitted for minimal play and positive engagement. Dual action bars link the fore-end to the bolt, preventing twisting and enhancing durability during the pump cycle. Safety features include a crossbolt located in the rear of the , which slides laterally to block the trigger in the rear (safe) position or allow firing when pushed forward. Complementing this is the action bar lock, a spring-loaded mechanism that secures the bolt in its forward or rearward position when the is engaged, preventing inadvertent action movement until intentionally released. These elements, combined with the hand-fitted internals, contribute to the Model 31's reputation for safe, dependable function across gauges, though the mechanism's smooth operation feels slightly crisper in lighter gauges like 20 due to reduced mass.

Specifications

The Remington Model 31 pump-action was available in 12-gauge, 16-gauge, and 20-gauge chamberings, with the 12-gauge being the most commonly produced variant. Its tubular magazine held either 2 or 4 rounds depending on configuration, allowing for a total capacity of 3 or 5 shells including the one in the chamber; the 4+1 setup was typical for standard field use. Barrel lengths for the base model varied to suit different applications, with common options including 26-inch, 28-inch, and 30-inch lengths for field and general sporting use, and longer 32-inch barrels available for . Choke configurations included full, modified, and improved cylinder bores, providing versatility for patterns from tight to open spreads. For the 12-gauge version, overall weight ranged from approximately 7 to 8 pounds, depending on barrel length and rib type, contributing to its balanced handling in the field. Stock dimensions featured a around 14 inches, with a drop at of about 1.5 inches and drop at of 1.75 inches, designed for comfortable shouldering during extended use. The base model utilized a blued steel receiver for durability and corrosion resistance, paired with a select walnut stock and forearm that provided a classic aesthetic and secure grip.
SpecificationDetails (Base 12-Gauge Model)
Chambering12-gauge (2¾-inch shells); 16-gauge and 20-gauge options available
Magazine Capacity4+1 rounds (tubular magazine)
Barrel Lengths26 in., 28 in., 30 in. (standard field); up to 32 in. for trap
ChokesFull, Modified, Improved Cylinder
Weight7–8 lb.
Length of Pull14 in.
Stock MaterialWalnut
ReceiverBlued steel

Variants

Gauge Configurations

The Remington Model 31 was produced in three gauge configurations: 12-gauge, 16-gauge, and 20-gauge. The 12-gauge version, introduced in 1931, accounted for 121,000 units, while the 16-gauge and 20-gauge models, added in 1933, together totaled 75,000 units. All gauges remained available through the standard production run ending in 1949. These gauge options offered distinct and handling characteristics tailored to different applications. The 12-gauge provided greater power and payload for , where denser patterns and higher energy were essential for larger birds at longer ranges, though it generated more felt . In contrast, the 20-gauge delivered lighter and improved maneuverability, making it ideal for upland game like or pheasants, where quick swings in close cover were prioritized over raw power; the 16-gauge fell between the two, balancing payload and reduced kick compared to the 12-gauge. Adaptations for each gauge included dedicated frame sizes to optimize the base pump-action mechanism's compatibility, with a larger frame for the 12-gauge and a shared, scaled-down frame for the 16- and 20-gauge models. Chambers were uniformly 2.75 inches across all gauges, ensuring compatibility with standard shells of that length for 12-, 16-, and 20-gauge ammunition. Magazine tubes were accordingly sized by gauge diameter to maintain a standard capacity of five rounds (plus one in the chamber), though often limited to three total for migratory bird hunting regulations.

Grade Options

The Remington Model 31 was produced in 35 variations and grades, ranging from basic utility models to highly customized premium options tailored for sporting and competitive use. These grades differed primarily in quality, barrel configurations, checkering, wood figuring, and metal finishes, allowing buyers to select levels of craftsmanship and functionality. At the entry level, the 31AP Standard Grade featured a plain barrel and uncheckered walnut stock with a basic oil finish, emphasizing affordability and simplicity for general field use. The 31B Special Grade elevated this with higher-quality imported wood, hand-cut checkering on the stock and for improved handling, and a polished blued metal finish. Higher grades offered enhanced aesthetics and performance features. The 31D Tournament Grade included a ventilated rib barrel for better sight alignment in competitive shooting, paired with select figured walnut stocks exhibiting finer grain patterns and deeper checkering borders. Premium models culminated in the TF Premier Grade, which incorporated factory on the receiver and a ventilated , along with exquisite wood selection featuring exhibition-grade figuring and intricate checkering, all finished in high-polish bluing; this top-tier configuration retailed for $302 during the . Introduced in 1941, the 31L variant featured a lightweight design with an aluminum alloy receiver to reduce weight without compromising the pump-action mechanism and to conserve steel during , available across several grades and often paired with standard or checkered stocks for versatile applications. Each grade's unique combination of checkering patterns—such as bordered or wrap-around designs—wood figuring for aesthetic appeal, and metal finishes like deep bluing or matting provided distinct customization levels, reflecting Remington's attention to both form and function. Specialized grades included the 31P Police Grade, designed for with durable construction and practical features for duty use, and the 31R Riot Grade, which featured a shortened 20-inch barrel for close-quarters applications, primarily procured for military and police forces during .

Production

Manufacturing Process

The Remington Model 31 was manufactured at Remington Arms Company's facility in , where assembly emphasized precision machining and manual labor to produce a high-quality pump-action . The process involved extensive hand-fitting of components, particularly the action bars and ejector, to achieve the model's renowned smooth operation and reliability. This labor-intensive approach ensured tight tolerances and minimal play in the mechanism, contributing to its reputation among hunters and shooters for a "ball-bearing" action. High-quality materials formed the foundation of the Model 31's construction, with the receiver and bolt assemblies typically machined from forged forgings for durability and strength, though some wartime models featured aluminum receivers to conserve . Stocks were crafted from select , providing an attractive and functional grip, while metal surfaces underwent bluing to enhance resistance and aesthetics. During , around 1941, aluminum receivers were introduced to conserve for military needs. Serial numbers ranged from 0,000 to 121,000 for 12-gauge and 500,000 to 575,000 for 16- and 20-gauge models. Quality control measures were rigorous, including proof-testing of barrels to verify structural integrity and individual function testing of each assembled action for reliable and ejection. These steps underscored Remington's commitment to craftsmanship, distinguishing the Model 31 from more mass-produced contemporaries.

Output and Discontinuation

The Remington Model 31 was produced from 1931 to 1949, with an approximate total output of 196,000 units across all variants. Production rates fluctuated over the years, with steady civilian output in giving way to significant interruptions during , when Remington diverted manufacturing resources from 1941 to 1945 primarily to fulfill military contracts for items such as M1903 rifles and limited configurations of the Model 31. Postwar resumption saw reduced volumes as the design's labor-intensive assembly struggled to compete economically. Discontinuation in 1949 stemmed from escalating production costs driven by the shotgun's hand-fitting requirements, which demanded skilled labor and resulted in low profit margins compared to sales performance against cheaper rival pump-actions. Although final assembly occurred through , Remington cleared remaining inventory by selling units into the early 1950s, marking the end of the Model 31's active production run.

Legacy

Successor Models

The Remington Model 870, introduced in 1950, served as the direct successor to the Model 31, addressing the production challenges of its predecessor through significant cost reductions and manufacturing simplifications. Engineers redesigned the action around a machined receiver derived from the 16-gauge Model 11-48 semi-automatic, reducing the number of machining operations from approximately 586 in the Model 31 to about 150 in the Model 870, which facilitated easier assembly and lower costs while maintaining durability. This shift to a more streamlined receiver and simplified components allowed for greater in production without compromising the core pump-action mechanism. Key features from the Model 31 were retained in the Model 870, including its renowned pump-action reliability and availability in multiple gauge configurations such as 12, 16, , and later , ensuring versatility for hunting and sporting use. The successor incorporated dual action bars connecting the forend to the bolt for smooth operation, drawing inspiration from the Model 31's fluid cycling to provide consistent performance under varied conditions. However, the design emphasized efficiencies, such as modular components that reduced hand-fitting requirements, making the Model 870 more accessible to a broader market. The Model 870's affordability drove a dramatic market shift, with Remington achieving sales of two million units by 1973—ten times the production volume of the Model 31—and surpassing 10 million by 2009, solidifying its position as the best-selling shotgun in history. This success stemmed from its lower retail price and robust reliability, which appealed to civilian, , and users, ultimately eclipsing competitors like the Model 12 in market dominance.

Collectibility

The collectibility of the Remington Model 31 stems from its reputation as a finely crafted pump-action produced in limited numbers, with total output reaching approximately 196,000 units across all variants from 1931 to 1949. Among these, the 16-gauge and 20-gauge models are particularly sought after due to their relative rarity—comprising about 21.3% and 16.5% of production, respectively—making them more valuable than the ubiquitous 12-gauge versions. Factors influencing value include overall condition, original grade, and configuration details. As of 2025, well-preserved examples in high grades, such as the engraved Premier Grade (Model 31F), can exceed $600 at and reach $1,000 or more for exceptional pieces, while standard grades in good condition typically range from $350 to $500. Poor condition, such as heavy pitting or replaced parts, significantly reduces worth, often to under $300. Rarity of features like factory vent ribs on 16- or 20-gauge models further elevates prices for collectors. The Model 31 enjoys strong praise in shooting communities for its exceptionally smooth and reliable action, often described as superior to the later Remington 870 in terms of fluid cycling and craftsmanship. This enduring appeal keeps it popular not just as a collectible but also as a functional for and sport shooting. For authentication, collectors should examine the stamped on the receiver, which for 12-gauge models begins at 1 and extends into the six-digit range, correlating with production years. Barrel date codes—two or three letters on the left side near the receiver, using a system where the first letter indicates the month (, , A=March, etc.) and subsequent letters the year (e.g., "ZB" for 1931 or "TT" for 1948, with month prefix)—must match the serial number era to verify originality and avoid fakes.

References

  1. https://www.remarms.com/firearm-history/model-31
  2. https://gunsmagazine.com/gear/remington-model-31/
  3. https://www.shootingnewsweekly.com/shotguns/remington-model-31-the-forgotten-pump-gun/
  4. https://www.ducks.org/hunting/waterfowl-hunting-gear/remington-arms-bicentennial
  5. https://shootingsportsman.com/all-american-pumps/
  6. https://patents.google.com/patent/US1763714A/en
  7. https://bluebookofgunvalues.com/manufacturers/remington/categories/remington-shotguns-slide-action-model-31-variations
  8. https://www.ibiblio.org/hyperwar/USA/ref/TM/pdfs/TM9-285.pdf
  9. https://www.gunsandammo.com/editorial/best-shotguns-of-all-time/248533
  10. https://www.gunsinternational.com/guns-for-sale-online/shotguns/remington-shotguns---pump/remington-model-31-pump-action-shotgun-12ga----40-1945-est---41--solid-rib.cfm?gun_id=101757316
  11. https://www.imfdb.org/wiki/Remington_Model_31
  12. https://www.gunsinternational.com/guns-for-sale-online/shotguns/shotguns---trap/remington-model-31-tc-trap-pump-action---great-value.cfm?gun_id=101470894
  13. https://firearmland.com/item/1134552685
  14. https://www.fieldandstream.com/outdoor-gear/hunting/waterfowl-hunting/12-gauge-vs-20-gauge-waterfowl-upland-birds
  15. https://www.rockislandauction.com/detail/80/1470/us-marked-remington-model-31-slide-action-shotgun
  16. https://www.shotgunworld.com/threads/model-31-shotgun-value.567258/
  17. https://bluebookofgunvalues.com/products/remington-model-31b-special
  18. https://www.nramuseum.org/guns/the-galleries/modern-firearms-1950-to-present/case-53-arms-of-law-enforcement/remington-31r-slide-action-riot-shotgun.aspx
  19. https://gundigest.com/gun-reviews/shotguns/10-classic-shotguns
  20. https://calibremag.ca/wp-content/uploads/2021/06/CalibreMagazineVol1Issue5.pdf
  21. https://www.outdoorlife.com/most-notable-guns-remingtons-200-year-history/
  22. https://www.rockislandauction.com/detail/88/3424/world-war-ii-era-remington-model-31-riot-shotgun
  23. https://thefiringline.com/forums/showthread.php?t=528420
  24. https://www.fieldandstream.com/stories/guns/shotguns/history-of-the-remington-870
  25. https://www.americanrifleman.org/content/the-remington-870-a-look-back/
  26. https://www.outdoorlife.com/guns/remington-870-pump-shotgun/
  27. https://www.gunsmagazine.com/gear/remington-model-31/
  28. https://www.americanrifleman.org/content/exploded-view-remington-model-870-shotgun/
  29. https://www.americanhunter.org/content/remington-tops-10-million-model-870s/
  30. https://www.gun-tests.com/news/industry-notes/production-of-remington-model-870-shotgun-tops-10-million/
  31. https://truegunvalue.com/shotgun/remington-model-31/price-historical-value
  32. https://www.webuyguns.com/valuations/remington/model-31
  33. http://www.16ga.com/forum/viewtopic.php?t=5000
  34. https://www.shotgunworld.com/threads/remington-model-31-value-and-info-advice.394097/
  35. https://remingtonsociety.org/manufacture-dates/
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