Let’s Talk About Aero Precision M5 .308 Enhanced Lower Parts Kit w/No FCG or Pistol Grip
The Aero Precision M5 .308 Enhanced Lower Parts Kit w/No FCG or Pistol Grip is a builder’s best friend, offering a solid foundation for a custom .308 AR build. Aero Precision has a reputation for quality, and this kit promises to deliver that in a convenient package, minus the fire control group (FCG) and pistol grip. This allows for complete customization, catering to individual preferences and needs.
As a seasoned AR builder, I was looking for a reliable LPK to complete my latest M5 build. I wanted a kit that focused on quality components and offered the flexibility to choose my preferred trigger and grip. The promise of mil-spec dimensions and enhanced features like the takedown and pivot pins made this kit particularly appealing.
My first impression was positive upon unboxing. The parts were neatly organized, and the finish on each component looked clean and consistent. The weight felt substantial, suggesting quality materials, and the overall build quality seemed excellent, as one would expect from Aero Precision.
Compared to other LPKs I’ve used, like those from Palmetto State Armory and CMMG, the Aero Precision kit stood out due to its M5-specific parts and the absence of a pre-selected FCG and grip. This was a deliberate choice, as I wanted to use a Geissele trigger and Magpul grip. My initial excitement stemmed from the potential for a truly customized build based on a high-quality foundation.
Real-World Testing: Putting Aero Precision M5 .308 Enhanced Lower Parts Kit w/No FCG or Pistol Grip to the Test
First Use Experience
I tested the Aero Precision M5 .308 Enhanced Lower Parts Kit w/No FCG or Pistol Grip during a recent build session in my workshop. Installation was straightforward, thanks to the kit’s mil-spec dimensions and clear instructions (although experienced builders likely won’t need them). All the components fit snugly into my Aero Precision M5 lower receiver.
While the installation process was smooth, I did notice the extended magazine catch button provided extra purchase, even with gloved hands. No issues arose during the build, and everything functioned as expected. I used the set screw for the safety selector detent, which proved much easier than installing the detent with the traditional method that uses a punch and vice.
Extended Use & Reliability
After several range trips and hundreds of rounds fired through my completed M5 rifle, the lower parts kit has held up flawlessly. There are no signs of wear or tear on any of the components. The finish remains intact, and all the detents and springs are still functioning smoothly.
Maintenance has been simple: a quick wipe-down with a CLP-soaked cloth is all it takes to keep everything clean and functioning optimally. In comparison to some cheaper LPKs I’ve used in the past, the Aero Precision kit far surpasses them in terms of durability and reliability. It inspires confidence knowing I have a solid foundation under my preferred trigger and grip.
Breaking Down the Features of Aero Precision M5 .308 Enhanced Lower Parts Kit w/No FCG or Pistol Grip
Specifications
The Aero Precision M5 .308 Enhanced Lower Parts Kit w/No FCG or Pistol Grip is designed specifically for .308 AR builds using DPMS-pattern lowers. It features an anodized black finish for corrosion resistance and a uniform aesthetic. The kit includes M5-specific parts like the takedown pin, pivot pin, bolt catch, and extended magazine catch button, ensuring proper fit and function with Aero Precision M5 lowers.
The kit also includes standard AR lower parts, such as takedown/pivot detents and springs, a bolt catch buffer, roll pin, spring, magazine catch body and spring, buffer retainer and spring, safety selector, safety selector spring and detent, and a 4-40 set screw. The mil-spec trigger pin size ensures compatibility with a wide range of aftermarket triggers. These specifications are crucial for ensuring reliability and ease of installation in any .308 AR build.
Performance & Functionality
The Aero Precision M5 .308 Enhanced Lower Parts Kit w/No FCG or Pistol Grip performs exceptionally well, providing a solid foundation for a reliable and accurate .308 AR. The M5-specific parts fit perfectly in my Aero Precision lower, eliminating any slop or play. The included set screw for the safety selector detent is a welcome addition, making installation easier and more secure.
While the kit lacks a trigger and grip, this allows for complete customization based on individual preferences. The only weakness, as noted by some users, is the potential for the bolt catch screw (if you have an appropriately threaded lower) to be incorrect. I found that everything met and exceeded my expectations, offering excellent value for the price.
Design & Ergonomics
The build quality of the Aero Precision M5 .308 Enhanced Lower Parts Kit w/No FCG or Pistol Grip is excellent. The materials are high-quality, and the finish is consistent and durable. The parts are well-machined and fit together seamlessly.
The kit is also user-friendly, even for novice builders. The inclusion of the 4-40 set screw is a clever design choice that simplifies the installation process.
Durability & Maintenance
The Aero Precision M5 .308 Enhanced Lower Parts Kit w/No FCG or Pistol Grip is built to last. The high-quality materials and durable finish ensure that the parts can withstand the rigors of regular use. Maintenance is straightforward, requiring only occasional cleaning and lubrication.
Given the quality of the materials, I fully expect this LPK to last for the long haul. I would say it is easily a lifetime lasting product with proper care and maintenance.
Accessories and Customization Options
The Aero Precision M5 .308 Enhanced Lower Parts Kit w/No FCG or Pistol Grip does not include any accessories beyond the parts listed above. However, it is designed to be compatible with a wide range of aftermarket triggers, grips, and other accessories.
The absence of a trigger and grip actually enhances customization options, allowing builders to select the components that best suit their needs and preferences. The kit is fully compatible with standard AR-15/AR-308 accessories, offering a wide range of customization options.
Pros and Cons of Aero Precision M5 .308 Enhanced Lower Parts Kit w/No FCG or Pistol Grip
Pros
- High-quality, mil-spec components ensure reliability and durability.
- M5-specific parts guarantee proper fit and function with Aero Precision lowers.
- Absence of FCG and pistol grip allows for complete customization.
- The included set screw simplifies safety selector detent installation.
- Great value for the price.
Cons
- The bolt catch set screw may be the incorrect size for some lowers.
- Does not include FCG or pistol grip for those wanting a complete kit out of the box.
Who Should Buy Aero Precision M5 .308 Enhanced Lower Parts Kit w/No FCG or Pistol Grip?
The Aero Precision M5 .308 Enhanced Lower Parts Kit w/No FCG or Pistol Grip is perfect for experienced AR builders who want a high-quality LPK as a foundation for a custom .308 AR rifle. It’s ideal for those who prefer to choose their own trigger and grip, allowing for complete personalization. It also suits users who already have a trigger and grip on hand from previous builds.
This kit is not for beginners who are looking for a complete lower parts kit with all the necessary components to finish their build. Those who prefer a complete kit with a pre-installed trigger and grip should look elsewhere. Must-have accessories or modifications depend on the user’s preferences, but a high-quality trigger (like a Geissele or Timney) and a comfortable grip (like a Magpul or BCM) are highly recommended.
Conclusion on Aero Precision M5 .308 Enhanced Lower Parts Kit w/No FCG or Pistol Grip
Overall, the Aero Precision M5 .308 Enhanced Lower Parts Kit w/No FCG or Pistol Grip is an excellent choice for builders seeking a reliable and customizable foundation for their .308 AR. The price is justified by the high-quality components, precise fit, and enhanced features. The lack of an included FCG and pistol grip is a feature, not a bug, for those who want to personalize their rifle.
I would personally recommend this kit to any experienced AR builder looking for a top-tier LPK for their .308 AR project. If you’re looking for a solid foundation for your custom build, the Aero Precision M5 .308 Enhanced Lower Parts Kit w/No FCG or Pistol Grip is a fantastic choice. Start your build off right – you won’t regret it!