Anderson Manufacturing OOPS Spare Kit Review

Is the Anderson Manufacturing OOPS Spare Kit Worth It? Let’s Find Out

For anyone who has ever assembled or maintained an AR-15 platform rifle, the dreaded “spring launch” is a rite of passage. It’s a moment where a tiny component, under tension, decides to explore the furthest reaches of your workshop, leaving your project indefinitely stalled. This is precisely the scenario that led me to seek out a solution, and my search landed me on the Anderson Manufacturing OOPS Spare Kit. This kit, a thoughtfully curated collection of critical springs and pins, promises to be a lifesaver for those inevitable moments of dropped parts or projectile components.

Upon receiving the kit, my initial impression was one of practical reassurance. The components are neatly organized, and the variety of included parts immediately suggests that Anderson Manufacturing understands the common pitfalls of AR-15 assembly. While I’d previously resorted to scrounging for replacements or waiting days for single parts to arrive, this kit offered a ready-made contingency plan. Compared to the frustration of a halted build or repair, this small investment felt like a sensible insurance policy against project delays.

First Use Experience

My first real test for the Anderson Manufacturing OOPS Spare Kit came during a complete lower receiver build. The kit was invaluable when the Bolt Catch Spring decided to take an unexpected flight across my workbench, a common occurrence for anyone who’s handled these tiny parts. Having the replacement immediately at hand allowed the assembly to continue without a hitch, a stark contrast to past experiences where I’d spend precious minutes hunting for the errant piece or even longer waiting for a new one to arrive.

The Safety Selector Spring also proved its worth when it slipped from my tweezers during installation. Having a second one ready meant no interruption to the workflow. For extended use, the kit’s true value lies in its “Last Chance” capability; it’s there when you need it, and otherwise, you forget it exists until that fateful moment. I haven’t had to use the Hammer Spring or Trigger Spring yet, but their presence is a significant comfort.

Extended Use & Reliability

Even after several months and multiple lower receiver builds and reassemblies, the Anderson Manufacturing OOPS Spare Kit remains an essential part of my go-to toolkit. The springs remain taut, and the pins maintain their integrity. I’ve found that Anderson Manufacturing’s commitment to quality extends even to these small, often overlooked components.

The kit’s durability is excellent for its intended purpose. These are not parts subjected to significant stress or wear in normal operation, but rather those prone to loss or minor damage during installation. The Coiled Pins, in particular, are robust and hold their shape well, even after being tapped into place. Maintenance is virtually non-existent; these are spare parts, not wear items, and their primary function is to be ready when called upon.

Breaking Down the Features of Anderson Manufacturing OOPS Spare Kit

Specifications

The Anderson Manufacturing OOPS Spare Kit is specifically designed for the AR-15 platform, offering a comprehensive selection of essential small parts. Key components include the Bolt Catch Detent, Bolt Catch Pin (3/32″ x 1/2″ Coiled Pin), Bolt Catch Spring, Buffer Detent, Buffer Detent Spring, Disconnect Spring, Magazine Catch Spring for AR15, Safety Selector Detent for AR15, Safety Selector Spring, Take Down Pivot Pin Detent (2 needed per rifle), Detent Take Down Spring (2 needed per rifle), Hammer Spring (mil-spec), 1/8″ x 5/8″ Coiled Roll Pin for Trigger Guard, Trigger and Hammer Pin for AR15 (2 needed per rifle), and a Trigger Spring (single stage mil-spec). The kit’s multi-color classification refers to the varied metal finishes of its components.

The sheer volume and variety of these small but critical parts are a major specification. For a price of $12.95, this kit offers an exceptional value, especially when considering the cost and time saved by avoiding a trip to the parts store or waiting for online orders. The inclusion of multiple Take Down Pivot Pin Detents and Springs, along with Trigger and Hammer Pins, acknowledges that these are often the components most prone to being lost or damaged during the build process. The mil-spec adherence for the Hammer and Trigger Springs ensures compatibility and proper function within standard AR-15 fire control groups.

Performance & Functionality

The core function of the Anderson Manufacturing OOPS Spare Kit is to provide direct replacements for springs and pins that are easily lost or damaged during firearm assembly. In this regard, the kit performs exceptionally well. Each component fits precisely into its intended location on an AR-15 lower receiver, functioning exactly as the original parts would.

The springs exhibit consistent tension, allowing for proper engagement of detents and catch mechanisms. The detents themselves are precisely manufactured, ensuring they seat correctly and provide the intended resistance. The coiled roll pins are strong and hold their position securely without excessive force needed for installation. The only minor point of feedback from some users is that the quantity of take down/pivot detents and springs might be less than some builders prefer, though the kit still supplies the essential two per rifle.

Design & Ergonomics

From a design perspective, the Anderson Manufacturing OOPS Spare Kit focuses on pure functionality and compatibility. There are no aesthetic embellishments, as these are internal components. The materials used are standard for mil-spec firearms parts, offering durability and reliability.

Ergonomically, the “design” is about ease of access. The kit’s packaging, though simple, keeps the parts organized enough to quickly identify and retrieve the needed item. The small size of the individual components means that while they are easy to lose, they are also straightforward to handle once you’re accustomed to working with them. The clarity of the included parts list is crucial for identifying which component to use for which function.

Durability & Maintenance

The durability of the Anderson Manufacturing OOPS Spare Kit components is excellent for their intended purpose as spare parts. Springs are made to retain their tension, and pins are manufactured from hardened steel to resist deformation. Given that these parts are typically installed once and then remain largely static within the firearm, their lifespan is effectively indefinite under normal operating conditions.

Maintenance for this kit is essentially non-existent. These are consumables in the sense that they are spares, not items requiring cleaning or upkeep. However, it is wise to store them in a dry environment to prevent any potential corrosion over long periods, although the quality of the materials makes this a low concern. Any potential “failure point” would be the loss of the entire kit, which underscores the importance of keeping it in a designated, accessible location.

Accessories and Customization Options

The Anderson Manufacturing OOPS Spare Kit is a self-contained unit, meaning it doesn’t come with additional accessories that require further customization. Its purpose is to provide the missing accessories or replacements for your build. The components within the kit are designed to be directly compatible with a vast array of AR-15 platforms adhering to mil-spec standards.

There are no “customization options” for the kit itself. Instead, the kit’s value comes from its direct compatibility with a wide range of AR-15 parts and accessories that you might already own or plan to purchase. For instance, the Trigger Spring and Hammer Spring are designed to work with most standard AR-15 single-stage trigger groups.

Pros and Cons of Anderson Manufacturing OOPS Spare Kit

Who Should Buy Anderson Manufacturing OOPS Spare Kit?

The Anderson Manufacturing OOPS Spare Kit is an absolute must-have for any individual who frequently builds, modifies, or maintains AR-15 platform rifles. This includes home gunsmiths, hobbyists who enjoy custom builds, and even those who perform occasional maintenance on their firearms. Its value proposition is highest for those who are assembling their first few AR-15s or who are prone to dropping small parts in their workshop.

Conversely, someone who rarely touches their AR-15’s internal components and has never lost a spring might find it an unnecessary purchase. However, even for experienced builders, the “sooner or later, it will happen” nature of losing these small parts makes this kit a prudent buy. For those building multiple AR-15s, consider purchasing a few kits to have on hand across different workstations.

Conclusion on Anderson Manufacturing OOPS Spare Kit

The Anderson Manufacturing OOPS Spare Kit is a brilliantly conceived and executed product that addresses a universal frustration among AR-15 builders. For its modest price of $12.95, it delivers an invaluable collection of essential springs and pins, effectively acting as an insurance policy against project delays and lost parts. The quality of the components is robust, adhering to mil-spec standards, ensuring a perfect fit and reliable function.

While some users might wish for a greater quantity of certain parts, the kit covers the most commonly lost or damaged small components, making it an excellent value. I would wholeheartedly recommend this kit to anyone venturing into AR-15 assembly or maintenance. It’s not just a collection of spare parts; it’s a guaranteed time and sanity saver that belongs in every AR-15 owner’s toolkit.