Bushmaster AR15 Complete Lower Parts Kit Review

Let’s Dive into Bushmaster AR15 Complete Lower Parts Kit

The Bushmaster AR15 Complete Lower Parts Kit promises to be the cornerstone of any AR-15 build, offering a convenient package of mil-spec components to complete your stripped lower receiver. Bushmaster, a name synonymous with AR-15 platforms, aims to provide quality and reliability in a single kit.

I embarked on this review because I’m always looking for reliable parts kits for my builds, and I wanted to see if the Bushmaster AR15 Complete Lower Parts Kit lived up to the Bushmaster name. Upon unboxing, the kit felt solid, each component individually bagged and seemingly well-made. The parts had a uniform finish, and the springs felt robust, suggesting a good level of quality control.

I’ve used parts kits from Aero Precision and CMMG in the past. The Bushmaster kit appeared comparable in quality to the CMMG kit, but the Aero Precision kit’s individual packaging and included anti-walk pins gave it a slight edge in perceived value. My initial impression was cautiously optimistic; the parts looked good, but the true test would be in the installation and function.

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Real-World Testing: Putting Bushmaster AR15 Complete Lower Parts Kit to the Test

First Use Experience

I tested the Bushmaster AR15 Complete Lower Parts Kit during a recent build session at my workshop, focusing on assembling a dedicated .223 Wylde precision rifle. I wanted to assess the fit and function of each component within a known, reliable lower receiver. The installation process was straightforward.

I performed dry-fire tests and function checks on the completed lower. The trigger pull, while mil-spec, felt consistent, and the safety selector engaged positively in all positions. No immediate issues arose, even under repeated manipulations.

Extended Use & Reliability

After several range trips and approximately 500 rounds through the rifle, the Bushmaster AR15 Complete Lower Parts Kit has held up admirably. The trigger has smoothed out slightly with use. No parts have broken or shown signs of significant wear.

Maintenance has been minimal, consisting of routine cleaning and lubrication of the fire control group. So far, the Bushmaster kit is performing as expected, proving to be a reliable and functional set of components. I have experienced less consistent trigger pull with other mil-spec kits in the past.

Breaking Down the Features of Bushmaster AR15 Complete Lower Parts Kit

Specifications

The Bushmaster AR15 Complete Lower Parts Kit includes all the necessary components to complete a stripped AR-15 lower receiver. It includes a trigger, hammer, disconnector, trigger pin, hammer pin, safety selector, selector detent, selector spring, bolt catch, bolt catch plunger, bolt catch spring, bolt catch pin, magazine catch, magazine catch button, magazine catch spring, pistol grip, pistol grip screw, pistol grip lock washer, buffer retainer, buffer retainer spring, takedown pin, pivot pin, takedown pin detent (x2), pivot pin detent (x2), takedown pin detent spring (x2), and safety selector. These components are all constructed to mil-spec standards. The kit is designed for rifles chambered in 5.56x45mm NATO and .223 Remington.

These specifications are important because they ensure compatibility with a wide range of AR-15 lower receivers and uppers. The mil-spec designation suggests a level of quality and durability, ensuring that the components will withstand regular use and function reliably.

Performance & Functionality

The Bushmaster AR15 Complete Lower Parts Kit delivers on its promise of providing a functional and reliable set of components for completing an AR-15 lower. The trigger pull is standard mil-spec – not particularly light or crisp, but consistent and dependable. The safety selector operates smoothly and positively.

The included components all function as expected, with no significant issues encountered during installation or use. The kit provides a solid foundation for building a reliable AR-15 rifle. The trigger could be improved, but is perfectly acceptable for most users.

Design & Ergonomics

The Bushmaster AR15 Complete Lower Parts Kit is designed with functionality in mind. The parts are well-machined and finished in a standard black color. The kit is simple and straightforward. The ergonomics are dictated by the AR-15 platform itself, with the included pistol grip offering a standard feel.

The kit is user-friendly, with no significant learning curve for anyone familiar with AR-15 assembly. Installation is straightforward, requiring only basic tools and knowledge.

Durability & Maintenance

The mil-spec construction of the Bushmaster AR15 Complete Lower Parts Kit suggests that it will last for many years with proper care. The components are made from durable materials that can withstand regular use and exposure to the elements. Maintenance is minimal.

Regular cleaning and lubrication of the fire control group will help to ensure optimal performance and longevity. Replacing springs periodically as a maintenance measure is a good practice.

Accessories and Customization Options

The Bushmaster AR15 Complete Lower Parts Kit does not come with any additional accessories beyond the essential components required to complete a lower receiver. However, it is fully compatible with a wide range of aftermarket accessories and customization options designed for the AR-15 platform.

This includes triggers, grips, safety selectors, and other components from various manufacturers. The user can easily customize the lower receiver to their specific preferences. Upgrading the trigger is a common modification.

Pros and Cons of Bushmaster AR15 Complete Lower Parts Kit

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Who Should Buy Bushmaster AR15 Complete Lower Parts Kit?

The Bushmaster AR15 Complete Lower Parts Kit is perfect for first-time AR-15 builders, recreational shooters, and those seeking a reliable and affordable parts kit for their builds. It’s also well-suited for individuals who prefer a standard mil-spec trigger and are not seeking any fancy features.

This kit may not be the best choice for competitive shooters or those who demand a high-end, customized trigger pull. They should consider aftermarket options. A must-have modification for some would be an upgraded trigger.

Conclusion on Bushmaster AR15 Complete Lower Parts Kit

The Bushmaster AR15 Complete Lower Parts Kit is a solid and dependable option for completing your AR-15 lower receiver. It provides all the essential components in a convenient package, and the mil-spec construction ensures compatibility and reliability. At $94.85, the price is justified for the quality and completeness of the kit.

I would personally recommend this kit to anyone looking for a no-frills, reliable parts kit for their AR-15 build. It’s a great starting point for a functional and dependable rifle. Get your Bushmaster AR15 Complete Lower Parts Kit today and start building your dream AR-15!