For owners and enthusiasts of the Remington 870, the pursuit of enhanced performance is rarely a static journey. The platform’s legendary versatility means that modification is not just a niche hobby but a fundamental aspect of ownership, allowing the shotgun to evolve beyond the factory floor. Whether the goal is to shave milliseconds off a competition run, improve reliability in harsh conditions, or tailor the handling characteristics for personal comfort, the path to modifying this workhorse is well-trodden and deeply rewarding.
Understanding the Remington 870 Modification Landscape
The sheer popularity of the 870 creates a unique ecosystem for modification. Unlike more obscure platforms, the availability of parts and expertise is virtually unlimited, spanning from major manufacturers to one-person shops run by competitive shooters. This accessibility lowers the barrier to entry for customization, but it also requires a discerning eye. The modification landscape is divided into functional upgrades, which affect performance, and aesthetic alterations, which transform the shotgun’s appearance, with many projects blending both disciplines.
Enhancing Functionality with Internal Components
Internal modifications are the heart of performance enhancement, focusing on the mechanics that drive the action. Replacing the factory recoil spring with a dual spring or a single, stiffer spring kit is one of the most common upgrades, primarily for tactical and defensive shotguns. This change reduces perceived recoil and helps the action cycle more reliably with heavier target loads or less-than-perfect ammunition, ensuring the 870 operates at its peak under stress.
Firing Pin and Extractor Upgrades
While the stock firing pin is robust, it can be slightly flexible, leading to occasional primer strikes that fail to ignite. Installing a stiffer, thicker firing pin eliminates this flex, promoting consistent ignition. Similarly, upgrading the extractors increases the force used to eject spent hulls, clearing the action faster and more positively, which is critical during rapid follow-up shots or when cycling slick, low-friction ammunition.
Optimizing External Ergonomics and Handling
How a shotgun feels in the shoulder and hand dictates how effectively it can be used. The factory forend is often a simple, utilitarian design that can be slippery or awkward. Swapping in a aftermarket forend, such as a TAC-14 or a Magpul MOE SL, provides a wider, more secure grip, especially when wearing gloves. This simple change can dramatically improve handling during fast-paced activities like Sporting Clays or home defense drills.
Adjusting the Trigger Group
The trigger is the direct connection between the shooter and the shotgun, and its feel is paramount. Many shooters find the factory trigger to be somewhat mushy or inconsistent. Installing an aftermarket trigger kit, such as those from Timney or Lancer, allows for a crisp, clean break with a precise, adjustable pull weight. This transformation turns the 870 into a precision instrument, where every shot feels deliberate and confident.
Aesthetic and Accessory Integration
Beyond performance, modification allows the shotgun to reflect the owner’s personality and specific needs. This often begins with a new finish, such as a matte Cerakote or a durable Duracoat, which protects the metal and offers a personalized look. Installing a Picatinny rail system is another popular choice, providing a stable platform for mounting lights, lasers, and optics without obscuring the traditional sight picture.
Barrel Changes for Purpose
The barrel is a central component in defining the 870’s role. Swapping the factory cylinder bore for a ported barrel reduces recoil and muzzle rise, making rapid sight recovery easier. For competition, extended choke tubes or specialty constriction barrels can unlock patterns that are otherwise impossible to achieve. Conversely, shortening the barrel for defensive applications increases maneuverability in tight spaces, turning the 870 into a formidable close-quarters tool.
