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Remington Model 31
View on WikipediaThe 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that competed with the Winchester Model 1912 for the American sporting arms market.[1] Produced from 1931 to 1949, it superseded the John Pedersen-designed Models 10 and 29, and the John Browning-designed Model 17.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
[edit]- ^ "Remington's Magnificent Five – Page Two". Archived from the original on 2012-06-30. Retrieved 2007-06-14.
- ^ "Firearm Model History - Remington Model 31". Archived from the original on 2007-09-28. Retrieved 2007-06-14. Remington history page
- ^ Vanderpool, Bill "Bring Enough Gun" American Rifleman October 2013 pp.80-85&115-116
- ^ Canfield, Bruce (1992). U>S> Infantry Weapons of World War II. Lincoln, RI: Andrew Mowbray Publishers. p. 132. ISBN 0-917218-67-1.
- ^ "Simpson, Lane. "Remington's Magnificent Five", Shooting Times, May 2000". Archived from the original on 2012-06-30. Retrieved 2007-06-14.
Remington Model 31
View on GrokipediaDevelopment
Design Origins
The Remington Model 31 pump-action shotgun originated from efforts by Remington Arms to modernize its lineup of repeating shotguns in the late 1920s, addressing limitations in earlier bottom-ejecting designs.[2] 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.[3] 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.[4][2] Loomis evolved these designs by adapting the Model 17's compact layout for side-ejection, marking Remington's first such pump-action shotgun and positioning it as a direct competitor to the Winchester Model 12.[5][1] 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.[2] 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."[3][5] Initial prototypes emerged in early 1930 following intensive development, with Loomis filing a foundational patent (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.[6] Issued on June 17, 1930, the patent emphasized sheet-metal components with guiding surfaces to minimize friction and ensure consistent shell feeding, directly influencing the Model 31's final configuration.[6] These innovations resolved Pedersen-era shortcomings, such as inconsistent ejection under rapid fire, paving the way for the model's 1931 introduction.[2]Introduction
The Remington Model 31 was officially introduced in 1931 as Remington Arms' first side-ejecting pump-action repeating shotgun, positioning it as a premium competitor to established models in the American sporting arms market.[1][2] 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.[2][1] At launch, the base model retailed for approximately $48.95, reflecting its high-quality construction during the early years of the Great Depression, when affordability was a key concern for buyers.[2] Early endorsements praised its exceptionally smooth pump action, 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.[2] Initial production of the Model 31 took place at Remington's facility in Ilion, New York, with the first units shipping to distributors in August 1931 under the guidance of designer C.C. Loomis.[2] This setup allowed for rapid scaling to meet demand, starting with the 12-gauge configuration and adding 16- and 20-gauge variants in 1933.[1][7]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.[8] 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.[8] 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.[8] 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.[8] 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.[8] 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.[8] The side-ejection proved advantageous for right-handed users, as it directs ejecta to the right, minimizing interference with low-mounted optics or operations in low-light conditions where bottom-ejected hulls might otherwise accumulate in the line of sight or underfoot.[2] Shooters favored this over bottom-ejection designs, contributing to the Model 31's competitiveness against rivals like the Winchester Model 12.[2] Internally, the mechanism relies on precision-machined, hand-fitted components for its renowned smooth operation, often described as clock-like in reliability and feel.[9] The carrier, cam-operated by the breechblock, manages shell transfer with a spring-loaded dog and follower from the magazine spring, while the ejector ensures consistent expulsion.[8] The trigger group, housed in a removable plate, integrates the trigger, sear, hammer with double hooks, and firing pin mechanism within the breechblock, all fitted for minimal play and positive engagement.[8] Dual action bars link the fore-end to the bolt, preventing twisting and enhancing durability during the pump cycle.[9] Safety features include a crossbolt safety located in the rear of the trigger guard, which slides laterally to block the trigger in the rear (safe) position or allow firing when pushed forward.[8] Complementing this is the action bar lock, a spring-loaded mechanism that secures the bolt in its forward or rearward position when the safety is engaged, preventing inadvertent action movement until intentionally released.[8] 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 recoil mass.[9]Specifications
The Remington Model 31 pump-action shotgun was available in 12-gauge, 16-gauge, and 20-gauge chamberings, with the 12-gauge being the most commonly produced variant.[3] 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.[10] 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 trap shooting.[11] Choke configurations included full, modified, and improved cylinder bores, providing versatility for patterns from tight to open spreads.[12] 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.[10][12] Stock dimensions featured a length of pull around 14 inches, with a drop at comb of about 1.5 inches and drop at heel of 1.75 inches, designed for comfortable shouldering during extended use.[13] 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.[3]| Specification | Details (Base 12-Gauge Model) |
|---|---|
| Chambering | 12-gauge (2¾-inch shells); 16-gauge and 20-gauge options available |
| Magazine Capacity | 4+1 rounds (tubular magazine) |
| Barrel Lengths | 26 in., 28 in., 30 in. (standard field); up to 32 in. for trap |
| Chokes | Full, Modified, Improved Cylinder |
| Weight | 7–8 lb. |
| Length of Pull | 14 in. |
| Stock Material | Walnut |
| Receiver | Blued steel |
