Remington 870 Manual: A Comprehensive Guide

This comprehensive guide details the iconic Remington 870 shotgun, offering insights from official manuals and disassembly guides.
It covers operation, maintenance, and
customization,
including tactical variations and Super Magnum models.
Downloadable resources and detailed instructions
are readily available for all 870 owners and enthusiasts.

The Remington Model 870, introduced in 1950, stands as a cornerstone of American shotgun manufacturing, renowned for its reliability and versatility. This pump-action shotgun has served hunters, sport shooters, and law enforcement professionals for over seven decades. Its enduring popularity stems from a simple, yet robust design, making it easily maintainable and adaptable to various applications.

Numerous variations exist, including the Wingmaster, Police, and Tactical models, each tailored to specific needs. Access to comprehensive manuals, like those available from RemArms LLC and Cornell Publications, is crucial for safe and effective operation. These resources, often available as downloadable PDFs, provide detailed instructions on assembly, disassembly, and troubleshooting. Understanding the 870’s mechanics ensures responsible firearm ownership and maximizes its performance potential.

Historical Overview of the Model 870

Introduced in 1950, the Remington 870 quickly became a dominant force in the shotgun market, replacing the earlier Model 31. Designed as a durable and affordable firearm, it addressed a need for a reliable pump-action shotgun for both sporting and professional use. Early manuals, and subsequent reprints like those from Cornell Publications, documented its innovative features and straightforward operation.

Throughout the decades, the 870 has undergone subtle refinements, but its core design has remained remarkably consistent. The “Wingmaster” variant gained prominence among hunters, while law enforcement agencies adopted the “Police” model. Tactical versions emerged to meet the demands of modern security forces. Access to historical manuals and current guides, such as those from Gun Guides, provides valuable insight into the evolution of this iconic firearm and its enduring legacy.

Safety Precautions and Warnings

Prior to handling any Remington 870, thoroughly review the official owner’s manual available from RemArms LLC and other sources. Always treat every firearm as if it is loaded. Keep the muzzle pointed in a safe direction at all times. Never place a finger on the trigger until ready to shoot. Ensure the safety mechanism is engaged when loading or unloading.

Be certain of your target and what is beyond it. Utilize appropriate ammunition only, as detailed in the manual. Improper ammunition can cause damage or injury. Store firearms securely, unloaded, and inaccessible to unauthorized individuals. Regular inspection of the firearm, as outlined in disassembly/reassembly guides, is crucial for safe operation. Ignoring these warnings can result in severe injury or death.

Understanding the Remington 870 Components

Detailed examination reveals the 870’s core: receiver, barrel, forend, and stock. Manuals highlight each part’s function, aiding disassembly, reassembly, and proper maintenance procedures.

Receiver and Action Assembly

The receiver, the central component, houses the action, crucial for cycling rounds. Manuals emphasize careful inspection for wear and proper function.
The action assembly involves the bolt, slide, and various springs, all working in harmony.
Disassembly requires understanding the shell latch and takedown mechanisms, detailed in gun-guides manuals.

Correct reassembly is paramount for safe operation; ensure all parts are aligned and secured.
Comb binding in gunsmithing books allows for easy reference during this process.
The port cover spring, as noted in owner’s manuals, requires precise placement.
Understanding the interaction between these components, as outlined in the 870 Manual Final.pdf from RemArms LLC, is key to maintaining the shotgun’s reliability.

Barrel and Choke System

The Remington 870’s barrel is a critical component, influencing accuracy and range. Manuals detail various barrel lengths and gauges available.
The choke system, a key feature, controls shot spread, adapting the shotgun to different applications.
Choke tube selection, discussed in comprehensive guides, impacts performance for bird hunting or tactical scenarios.

Understanding choke constriction – from cylinder to full – is essential.
RemArms LLC’s manual provides detailed diagrams.
Proper installation and removal prevent damage to the barrel threads.
Tactical variations may feature specific choke options.
Maintaining the barrel’s internal and external surfaces, as outlined in field manuals, ensures optimal function and longevity, contributing to the 870’s renowned reliability.

Forend and Trigger Guard

The Remington 870’s forend, crucial for action cycling, is detailed in disassembly manuals. Proper forend installation and removal are vital during field stripping. Guides emphasize the importance of a secure fit to ensure smooth pump action. The trigger guard assembly houses the trigger mechanism, requiring careful handling during maintenance.

Disassembly instructions highlight the forend’s connection to the receiver. Manuals from Cornell Publications and Gun Guides detail the latch mechanisms. Tactical models may feature modified trigger guards for enhanced grip. Maintaining these components, as outlined in owner’s manuals, prevents malfunctions. Ensuring proper function of both the forend and trigger guard contributes to the shotgun’s overall reliability and safe operation.

Stock and Buttplate

The Remington 870’s stock provides stability during shooting, and manuals detail its attachment to the receiver. Proper stock fit is essential for comfortable and accurate handling. The buttplate, often made of rubber, reduces recoil, enhancing shooter comfort. Disassembly guides illustrate how to safely remove the stock for maintenance or replacement.

Owner’s manuals emphasize checking the stock for cracks or damage. Tactical variations may feature adjustable stocks for customized fit. Maintaining the stock’s integrity is crucial for safe operation. Instructions detail securing the stock screws correctly. Guides from Cornell Publications and Gun Guides offer detailed illustrations. A well-maintained stock and buttplate contribute significantly to the shotgun’s overall performance and longevity.

Operation and Function

Remington 870 operation involves safe loading, unloading, action cycling, and trigger mechanics. Manuals explain choke selection for varied shooting applications, ensuring optimal performance.

Loading and Unloading Procedures

Safe handling is paramount when operating the Remington 870. Always ensure the firearm is pointed in a safe direction. To load, depress the shell latch located on the trigger guard, allowing the forend to move forward. Insert shells directly into the magazine tube, one at a time, until the desired number is reached – typically, this is limited to five shells in the tube plus one in the chamber.

To chamber a round, firmly cycle the action by moving the forend rearward and then forward. Unloading requires similar action cycling to eject shells. Depress the shell latch again, and carefully remove all shells from the magazine tube. Always double-check the chamber to ensure it is empty before proceeding with any maintenance or storage. Refer to the official manual for detailed illustrations and safety guidelines.

Cycling the Action

Smooth and efficient action cycling is crucial for rapid follow-up shots with the Remington 870. The pump-action mechanism relies on the user’s manual operation of the forend. To cycle the action, firmly grasp the forend and move it fully rearward, then forward. This motion extracts the spent shell from the chamber, ejects it, and simultaneously loads a fresh shell from the magazine tube into the chamber.

Consistent and deliberate cycling ensures reliable operation. Avoid short-stroking the action, as this can lead to malfunctions. Practice proper technique to develop muscle memory. A properly lubricated action will contribute to smoother cycling. Always verify complete cycling before assuming the firearm is ready for the next shot. Refer to the owner’s manual for detailed diagrams and troubleshooting tips.

Trigger Mechanism Explained

The Remington 870’s trigger mechanism is a single-stage design, known for its simplicity and reliability. It operates via a hammer-fired system, requiring the user to pull the trigger to release the hammer, which then strikes the firing pin, igniting the cartridge. A manual safety located on the trigger guard prevents accidental discharge. Ensure the safety is engaged when not actively shooting.

The trigger pull weight can vary slightly between models. Proper maintenance, including cleaning and lubrication, is essential for a crisp and consistent trigger pull. Disassembly for detailed inspection should only be performed by a qualified gunsmith. Always refer to the owner’s manual for specific instructions and warnings regarding the trigger mechanism.

Choke Tube Selection and Usage

The Remington 870’s versatility is enhanced by its interchangeable choke tube system. Chokes control the spread of the shot pattern, influencing range and effectiveness. Common choke constrictions include Cylinder, Improved Cylinder, Modified, and Full, each suited for different applications – from close-range bird hunting to long-distance waterfowl.

Selecting the correct choke depends on the intended target and distance. Always consult the owner’s manual for recommended choke pairings with specific ammunition. Proper installation and removal require a choke tube wrench to avoid damage. Regular cleaning and inspection of choke tubes are crucial to prevent corrosion and ensure optimal performance. Never attempt to shoot steel shot through a choke not specifically designed for it.

Disassembly and Reassembly

Detailed guides illustrate field stripping, complete disassembly, and reassembly procedures for the Remington 870.
These instructions, found in manuals and gun-guides,
ensure proper function and safe operation.

Field Stripping for Cleaning

Field stripping the Remington 870 is a crucial maintenance step, enabling thorough cleaning and inspection. Begin by ensuring the shotgun is unloaded, following all safety precautions. Depress the forend release latch and slide the forend forward off the receiver. Next, carefully retract the bolt slightly and rotate the bolt lock lever downwards. This allows the bolt assembly to be pulled rearward and out of the receiver.

The trigger group remains intact during field stripping. Inspect all components for wear, damage, or excessive fouling. Refer to the owner’s manual or a dedicated disassembly guide for visual aids and detailed instructions. Proper field stripping facilitates efficient cleaning and helps maintain the 870’s reliable performance. Remember to consult resources like Gun Guides for comprehensive instructions.

Detailed Disassembly Instructions

For complete disassembly beyond field stripping, specialized tools and caution are required. After field stripping, remove the trigger group by carefully depressing the trigger guard screws. The bolt assembly can be further disassembled, including the firing pin and extractor, but requires careful attention to detail. The receiver is typically left intact unless a complete overhaul is necessary.

Consult a dedicated disassembly manual, such as those from Gun Guides, for detailed diagrams and step-by-step instructions. Note the position of all springs and detents during removal. Improper disassembly can lead to lost parts or damage. The Remington 870’s design, while robust, demands precision during detailed disassembly. Always prioritize safety and refer to reliable resources.

Reassembly Steps and Checks

Reassembly follows disassembly in reverse, demanding meticulous attention to detail. Ensure all springs and detents are correctly positioned before proceeding. Carefully reinstall the trigger group, securing the trigger guard screws firmly. The bolt assembly requires precise alignment of the firing pin and extractor. After reassembly, perform a thorough function check.

Verify proper trigger pull, safety engagement, and action cycling. Confirm the forend slides smoothly and the barrel is securely locked. A Gun Guides manual provides invaluable visual aids for this process. Always double-check each step to prevent malfunctions. Prioritize safety and consult reliable resources if encountering difficulties during reassembly.

Troubleshooting Common Disassembly Issues

Stuck components during disassembly are frequent challenges. A stubborn forend often requires firm pressure while depressing the shell latch. If the bolt assembly resists removal, ensure the action is fully cycled and the trigger is held back. Difficulty with the trigger group can stem from improperly released springs or detents. Gun Guides manuals offer detailed diagrams to aid in identifying these issues.

Lost or damaged parts are also common concerns. Keep a clean workspace and organize components systematically. If a spring is misplaced, carefully retrace disassembly steps. Always use appropriate tools to avoid damaging delicate parts. Patience and a methodical approach are crucial for resolving disassembly problems effectively.

Maintenance and Cleaning

Regular cleaning preserves the 870’s reliability. Utilize recommended solvents and lubricants, focusing on internal parts. Proper storage prevents rust and ensures longevity,
following
detailed
manual guidelines.

Recommended Cleaning Supplies

Maintaining your Remington 870 requires specific cleaning supplies to ensure optimal performance and longevity. A quality gun cleaning solvent is essential for removing powder residue, lead, and copper fouling from the barrel and action. Hoppe’s No. 9 is a widely recommended choice, but other reputable brands are available.

You’ll also need a bore brush, typically made of bronze or nylon, to scrub the inside of the barrel. Patches, often made of cotton flannel, are used in conjunction with a cleaning rod to apply solvent and remove debris. A dedicated gun oil, such as Rem Oil or CLP (Clean, Lubricate, Protect), is crucial for lubricating moving parts and preventing rust.

Don’t forget a soft cloth for wiping down external surfaces, a small brush for cleaning hard-to-reach areas, and potentially a plastic scraper for stubborn residue. Finally, safety glasses and gloves are recommended to protect your eyes and skin during the cleaning process. Having these supplies readily available will make maintaining your 870 a straightforward task.

Cleaning Procedures for Internal Parts

Disassembling the Remington 870 for internal cleaning requires careful attention. Begin by applying gun solvent to the bolt, bolt carrier, and receiver, allowing it to dwell for a few minutes to loosen fouling. Use a brush to scrub these components, focusing on areas with heavy carbon buildup.

Pay close attention to the firing pin and hammer, ensuring they are free of debris. Clean the trigger mechanism thoroughly, as this area is prone to accumulating dirt and grime. Wipe down all parts with a clean cloth, and inspect for any signs of wear or damage.

The receiver should be meticulously cleaned, removing any lingering residue. After cleaning, lightly lubricate all moving parts with gun oil before reassembly. Proper internal cleaning is vital for maintaining the smooth and reliable operation of your 870.

Lubrication Guidelines

Proper lubrication is crucial for the Remington 870’s smooth function and longevity. Apply a light coat of high-quality gun oil to the bolt, bolt carrier, and action bars after cleaning. Focus on friction points where metal surfaces slide against each other. The trigger mechanism benefits from a small drop of oil, ensuring crisp and reliable pulls.

Avoid over-lubrication, as excess oil can attract dirt and grime. A thin film is sufficient. Lightly oil the forend rails and the receiver rails to facilitate smooth pumping action. Inspect the gas ports (if applicable) and ensure they are clear of obstructions.

Regular lubrication, combined with consistent cleaning, will protect your 870 from corrosion and ensure years of dependable service. Use a silicone-based lubricant for optimal performance in extreme conditions.

Long-Term Storage Recommendations

For extended storage, thoroughly clean and lubricate your Remington 870 to prevent corrosion. Apply a protective coating of gun oil to all metal surfaces, including the bore. Consider using a silicone-impregnated gun sock to absorb moisture and shield the firearm from dust. Store the shotgun in a cool, dry location with consistent temperature and humidity.

Avoid storing the firearm in direct sunlight or near heat sources. If possible, use a dehumidifier in the storage area to maintain low humidity levels. Periodically check the shotgun for signs of rust or corrosion, and re-apply oil as needed. Ensure the firearm is unloaded and the action is open during storage.

Securely store the shotgun to prevent unauthorized access, adhering to all local and federal regulations.

Advanced Topics

Explore specialized 870 models like tactical variations and Super Magnum 12-gauge options. Discover customization possibilities with accessories, and find manual download resources.

Remington 870 Tactical Variations

The Remington 870 Tactical represents a significant evolution of the classic pump-action shotgun, tailored for law enforcement, home defense, and competitive shooting. These variations often feature shorter barrel lengths, typically 18.5 or 14 inches, and are frequently equipped with Picatinny rails for mounting optics and accessories.

Many tactical models incorporate ghost ring sights for rapid target acquisition, and some include adjustable stocks for improved ergonomics. The 870 Tactical is renowned for its reliability and adaptability, making it a popular choice among professionals. Manuals for these models often highlight specific features related to accessory mounting and tactical loading techniques.

Furthermore, the receiver and forend may be constructed from lightweight materials or feature enhanced texturing for improved grip. Understanding the specific features of your 870 Tactical model, as detailed in its manual, is crucial for safe and effective operation.

Super Magnum 12 Gauge Models

Remington 870 Super Magnum 12-gauge models are designed to handle heavier loads and higher pressures than standard 870s, extending the shotgun’s versatility. These shotguns are specifically chambered for 3 ½-inch shells, offering increased payload capacity for waterfowl hunting or specialized applications.

The manual for Super Magnum models emphasizes the importance of using only appropriate ammunition, as firing standard 2 ¾-inch shells can lead to malfunctions. Key differences include reinforced receivers and barrels to withstand the increased stress.

Disassembly and reassembly procedures for Super Magnum variants may differ slightly from standard models, particularly concerning the bolt assembly. Owners should consult their specific manual for detailed instructions and safety precautions related to these powerful shotguns, ensuring proper function and longevity.

Customization Options and Accessories

The Remington 870’s enduring popularity stems partly from its extensive customization options. Owners can modify nearly every component, enhancing functionality or aesthetics. Aftermarket stocks, forends, and triggers are readily available, alongside upgraded sights and optics mounting rails.

The manual doesn’t detail aftermarket parts installation, emphasizing the importance of qualified gunsmiths for modifications. Common accessories include extended magazines, recoil pads, and various choke tubes. Tactical models often feature Picatinny rails for mounting lights, lasers, and other accessories.

Careful consideration should be given to compatibility and potential impact on the shotgun’s reliability when choosing accessories. Always prioritize safety and adhere to local regulations regarding modifications.

Remington 870 Manual Download Resources

Accessing the official Remington 870 manual and supplementary guides is crucial for safe and effective operation. RemArms LLC provides a downloadable PDF version of the owner’s manual directly on their website (870 Manual Final.pdf). This resource covers essential information regarding assembly, disassembly, and safety procedures.

Additional resources, including tactical shotgun manuals and disassembly/reassembly guides from Gun Guides, are available online. Websites like WordPress.com and DOKUMEN.TIPS host user-shared manuals and instructions. Cornell Publications offers reprinted field manuals for vintage models.

Always verify the source and date of any downloaded manual to ensure accuracy and relevance to your specific 870 model.