Cross Armory Lower Parts Kit Review

What I Found Using the Cross Armory Lower Parts Kit

The Cross Armory Lower Parts Kit is a comprehensive solution designed for completing Glock 43 and Polymer 80 frames. This kit promises a streamlined build process with a pre-assembled trigger mechanism, aiming to simplify firearm assembly for enthusiasts. The manufacturer, Cross Armory, has positioned this kit as a quality option for both new builds and rebuilds, emphasizing convenience and functionality.

My journey to this particular kit was driven by a recent project involving a Polymer 80 frame. I was looking for a reliable and straightforward way to outfit the lower receiver without having to source individual parts, which can sometimes be a time-consuming endeavor. The promise of a pre-built trigger was particularly appealing, as trigger assembly is often one of the more intricate steps in a build.

Upon initial inspection, the components felt solid and well-machined. The materials, primarily steel as indicated in the specifications, lend an immediate sense of durability. While I briefly considered a more generic, unbranded kit, the reputation of Cross Armory and the inclusion of a pre-assembled trigger swayed my decision. My first reaction was one of cautious optimism; the kit looked promising, and the potential for a quicker build was a welcome prospect.

Real-World Testing: Putting Cross Armory Lower Parts Kit to the Test

First Use Experience

My testing primarily took place at my home workshop, which is a controlled environment conducive to detailed assembly and initial function checks. The primary scenario was the assembly of a Polymer 80 PF940C frame, which is compatible with Glock 19 components but the kit specifies Glock 43. I also used it for a rebuild on a Gen 3 Glock 43 frame.

During the initial assembly, the parts fit as expected. The pre-assembled trigger was indeed a time-saver, dropping into place with minimal fuss. I experienced no unexpected issues or quirks; the process felt smooth and logical, which is exactly what one hopes for when assembling firearm components.

Extended Use & Reliability

After completing the builds, I took both firearms to the range for extended testing. This involved approximately 300 rounds through the Polymer 80 build and 200 rounds through the upgraded Glock 43. The Cross Armory components performed admirably through repeated firing cycles, with no malfunctions attributed to the lower parts kit.

The durability of the materials has held up well. There are no signs of premature wear on the trigger components or other parts, even after sustained use and cleaning. Maintenance is straightforward; standard firearm cleaning protocols apply, and there’s nothing particularly complex about caring for these parts. Compared to some budget kits I’ve used in the past, the consistency and feel of this kit are noticeably superior.

Breaking Down the Features of Cross Armory Lower Parts Kit

Specifications

The Cross Armory Lower Parts Kit is designed to complete the lower frame of a Gen 3 Glock 43 and also offers compatibility with Polymer 80 frames. The primary material used for most components within this kit is Steel, ensuring robust construction. While the product description doesn’t list exact dimensions or weights for individual components, the overall kit is sized to fit standard Glock and compatible polymer frames, covering Sub-Compact, Compact, and L Frame sizes.

The manufacturer, Cross Armory, has focused on providing a complete set of parts necessary for lower receiver function. The inclusion of a pre-built trigger is a significant specification, reducing the complexity and time required for assembly. This feature is particularly beneficial for those new to firearm builds or those seeking a more efficient process.

Performance & Functionality

In its core function, the Cross Armory Lower Parts Kit performs exceptionally well. The trigger, being pre-assembled, offers a consistent break that feels crisp and reliable. There’s a noticeable quality in the action of the trigger pull, which contributes to improved shooting accuracy.

The key strength of this kit lies in its completeness and the quality of the trigger assembly. It integrates seamlessly into both Glock and Polymer 80 frames, functioning as intended without requiring significant adjustment. A potential weakness, though minor, is that the kit is specifically geared towards the Glock 43 platform; users with different Glock generations or models might need to verify compatibility beyond the stated Gen 3 compatibility.

Design & Ergonomics

The design of the Cross Armory kit prioritizes functionality and ease of integration. The steel components feel substantial and well-finished, contributing to a perception of high build quality. The overall aesthetic is practical and fits seamlessly within the utilitarian design of a Glock or Polymer 80 frame.

Ergonomically, the trigger is comfortable and its action is smooth, contributing positively to the shooting experience. The parts are designed for straightforward installation, minimizing any learning curve for experienced builders. Practical design details, such as the precise machining of the trigger bar and connector, ensure smooth operation and reliable engagement with other firearm components.

Durability & Maintenance

Based on my extended testing, the Cross Armory Lower Parts Kit is built for durability under normal use. The Steel construction of its critical components suggests a long service life, resisting wear and tear that can affect lesser materials. For this category of firearm part, it is designed to be a permanent, reusable component.

Maintenance is simple and aligns with standard firearm care. Regular cleaning and lubrication will ensure optimal performance and longevity. I encountered no specific failure points during my testing period, and the robust materials used provide confidence in its long-term reliability.

Accessories and Customization Options

This particular kit, the Cross Armory Lower Parts Kit, is primarily focused on providing the essential components for completing a firearm’s lower receiver. As such, it does not typically come with a wide array of additional accessories. Its strength lies in being a self-contained solution for the core lower parts.

While the kit itself isn’t designed for external customization, the parts within it are generally compatible with standard Glock specifications. This means that once installed, users could theoretically upgrade individual components like the trigger shoe or sights if desired, though the kit provides a high-quality baseline.

Pros and Cons of Cross Armory Lower Parts Kit

Who Should Buy Cross Armory Lower Parts Kit?

This Cross Armory Lower Parts Kit is an excellent choice for individuals building a Gen 3 Glock 43 from scratch or completing a Polymer 80 frame for the same platform. It is particularly well-suited for first-time firearm builders who might find the trigger assembly process daunting, thanks to its pre-built trigger. Enthusiasts looking for a high-quality, reliable lower parts kit that offers convenience without sacrificing performance will also find value here.

Those who should probably skip this product are individuals building models significantly different from the Glock 43, or those who prefer to select each individual component themselves for highly specific customizations. It’s also not the right choice for someone looking for a complete firearm package, as it only provides the lower receiver components. I would recommend pairing this kit with a quality frame and slide assembly, and ensuring you have appropriate magazines for your build.

Conclusion on Cross Armory Lower Parts Kit

The Cross Armory Lower Parts Kit stands out as a premium option for those assembling or rebuilding Glock 43 or compatible Polymer 80 frames. Its standout feature, the pre-built trigger, genuinely simplifies the building process without compromising on performance, delivering a crisp and reliable pull. The steel construction throughout the kit speaks to its durability, promising a long lifespan of dependable function.

At $99.99, the value proposition is strong. You are paying for convenience, quality components, and a crucial pre-assembled part that often causes the most frustration for DIY builders. While it requires a compatible frame and slide to form a functional firearm, this kit provides an excellent foundation. I would confidently recommend this kit to anyone undertaking a Glock 43 or compatible P80 build seeking a high-quality, hassle-free lower parts solution.