Converting an old M870 into a reliable upland gun (what I changed)

Transforming a Classic Remington M870 into a Dependable Upland Shotgun: A Step-by-Step Approach

The Remington M870 has long been celebrated for its durability and versatility, making it a popular choice among hunting enthusiasts. However, when an old M870 has been sitting unused in a closet for years, it may require some thoughtful modifications to turn it into a reliable and comfortable upland game gun. In this article, we’ll explore the key upgrades and adjustments that can rejuvenate an aging shotgun, enhancing its performance for early-season walks and bird hunting adventures.

1. Upgrading the Stock for Better Handling

One of the first changes I made was replacing the original heavy stock with a lightweight synthetic alternative. This significantly reduced the overall weight of the firearm, making it easier to carry over long walks. Additionally, I shortened the length of pull slightly; this adjustment improved swing speed and faster mount consistency—crucial factors when working with fast-flushing game birds.

1. Optimizing Choke for Patterning Performance

For precise shot placement, especially on flushed birds, I installed a moderate-modified choke. This choke type offers tight, predictable patterns, increasing hit probability. Careful indexing of the choke ensured consistent spread and performance, so every shot is as effective as possible.

1. Enhancing Action Reliability

An often-overlooked aspect of older shotguns is the condition of the action springs and magazine springs. Over time, springs can weaken, leading to feeding issues like double feeds or shell spits. Replacing the action springs and inspecting the magazine spring helped restore reliable cycling. Additionally, I buffed and polished the action bars, smoothing operation and enhancing cycling fluidity without altering the core mechanism.

1. Maintaining the Barrel and Choke Compatibility

While I kept the original barrel intact, I ensured proper indexing of the choke to maintain consistent patterns. Proper choke alignment is essential for predictable shot patterns, especially in upland hunting scenarios where shot placement is critical.

1. Sourcing Quality and Cost-Effective Parts

In my search for affordable yet effective upgrades, I compared prices across multiple outlets. I also discovered inexpensive furniture options on platforms like Alibaba, which fit my budget comfortably while waiting to save for higher-end accessories. This approach allowed me to build a dependable upland shotgun without significant expense.

Conclusion

Converting an aging Remington M870 into a reliable upland hunting partner involves focusing on key components: action reliability, ergonomic adjustments, and choke selection. Small, strategic modifications