CMMG, Inc AR15 Selector Detent Review

Let’s Dive into CMMG, Inc AR15 Selector Detent

The CMMG, Inc AR15 Selector Detent is a seemingly insignificant, yet utterly crucial component of any AR-15 build. This tiny piece plays a vital role in ensuring the positive and reliable engagement of the safety selector, a function that is paramount for safe firearm operation. CMMG is a well-regarded manufacturer known for producing high-quality, mil-spec components, and their selector detent promises to deliver the same reliability and precision. I was driven to examine this particular selector detent because I was seeking a dependable replacement for a worn part in one of my AR builds and wanted to see if it lived up to the CMMG reputation.

Upon receiving the CMMG, Inc AR15 Selector Detent, I was immediately struck by its simple, clean appearance. The detent felt solid and well-machined, exhibiting no visible imperfections or burrs. While visually similar to other selector detents on the market, the attention to detail suggested a higher level of quality control. I’ve used selector detents from various manufacturers like Brownells and Aero Precision in the past, and chose the CMMG for this build, hoping its reputation translated to better longevity and smoother operation compared to cheaper options.

My first impression was one of quiet confidence. It’s just a detent, but knowing it came from CMMG inspired trust. I was eager to see if this little part would enhance the overall feel and function of my AR-15’s safety selector.

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Real-World Testing: Putting CMMG, Inc AR15 Selector Detent to the Test

First Use Experience

I tested the CMMG, Inc AR15 Selector Detent at my local shooting range, installing it into a newly built AR-15 lower receiver. The installation process was straightforward, requiring no special tools or modifications. The detent engaged smoothly with the safety selector, providing a positive and tactile “click” between each position (safe, semi, and auto – though my build is only semi-auto).

The weather was slightly damp, but the CMMG detent performed flawlessly. The selector moved with crisp precision, even with slightly wet hands. I was immediately impressed by the improved feel compared to the worn detent it replaced.

Extended Use & Reliability

After several weeks of use and approximately 500 rounds fired, the CMMG, Inc AR15 Selector Detent continues to perform admirably. There are no signs of wear or tear, and the selector continues to operate smoothly and positively. Cleaning and maintenance are minimal; a simple wipe-down with a lightly oiled cloth is sufficient.

This CMMG detent outperforms the original factory detent that came with my first AR-15 lower receiver kit, which had always felt a bit mushy and imprecise. The difference in feel and responsiveness is significant and appreciated. I’m now confident that CMMG parts are something I’ll invest in for future builds.

Breaking Down the Features of CMMG, Inc AR15 Selector Detent

Specifications

• Manufacturer: CMMG, Inc. CMMG is a well-known manufacturer of AR-15 parts and accessories.
• Gun Model: AR-15. This detent is specifically designed for use in AR-15 platform rifles.
• Material: Mil-spec steel. The robust construction ensures longevity and resistance to wear and tear.
• Finish: Typically phosphated or similar corrosion-resistant coating. This protects the detent from rust and corrosion, even in harsh environments.
• Function: Provides tactile feedback and secure locking for the safety selector. This ensures positive engagement of the safety positions.

These specifications are crucial because they directly impact the reliability and longevity of the safety selector. A high-quality detent ensures the safety selector functions correctly, preventing accidental or unintentional firing. The mil-spec construction is key to making sure it lasts.

Performance & Functionality

The CMMG, Inc AR15 Selector Detent performs its job flawlessly. It provides a crisp and positive engagement for the safety selector, giving the user confidence that the rifle is either safely secured or ready to fire. The detent meets and exceeds my expectations. It is a significant improvement over many cheaper, lower-quality detents.

The only potential area for improvement would be to offer different spring weights to further customize the selector feel. However, the current spring rate seems perfectly adequate for most users.

Design & Ergonomics

The design of the CMMG, Inc AR15 Selector Detent is simple yet effective. The dimensions are precise, ensuring a perfect fit within the lower receiver. The materials used are high-quality, giving the detent a solid and durable feel. It’s well-made and easy to install.

There is virtually no learning curve. Replacing an existing detent or installing it in a new build is a simple process for anyone familiar with AR-15 assembly.

Durability & Maintenance

Given its mil-spec steel construction and corrosion-resistant finish, the CMMG, Inc AR15 Selector Detent should last for many years with proper care. Maintenance is minimal, requiring only occasional cleaning and lubrication. The AR-15 is a modular platform, and replacing parts like this is straightforward, further ensuring long-term usability.

The detent is easily replaceable should it ever wear out. The simple design ensures easy repair, and it should provide a lifetime of use under normal conditions.

Accessories and Customization Options

There are no direct accessories that come with the CMMG, Inc AR15 Selector Detent, as it is a standalone component. However, it is compatible with a wide range of AR-15 safety selectors from various manufacturers. You can select different selectors to get a customized feel.

The detent also works with ambidextrous safety selectors, providing added convenience for left-handed shooters. The compatibility with different selectors and ambidextrous designs makes it a versatile component for any AR-15 build.

Pros and Cons of CMMG, Inc AR15 Selector Detent

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Who Should Buy CMMG, Inc AR15 Selector Detent?

The CMMG, Inc AR15 Selector Detent is perfect for AR-15 builders, gun owners seeking to upgrade worn parts, or anyone prioritizing safety and reliability in their firearm. It’s an ideal choice for both experienced shooters and beginners alike. Anyone looking for a reliable component will find this to be an exceptional solution.

Those who should skip this product might be individuals seeking highly customized or aesthetically unique selector detents. While functional and reliable, the CMMG detent is a standard mil-spec part that lacks any unique visual appeal. A must-have accessory to accompany the detent is a quality AR-15 lower parts kit installation tool, which will simplify the installation process and prevent damage to the lower receiver.

Conclusion on CMMG, Inc AR15 Selector Detent

In summary, the CMMG, Inc AR15 Selector Detent is a small but essential component that delivers exceptional performance and reliability. It improves the feel and function of the AR-15 safety selector, contributing to safer and more enjoyable shooting. The value proposition is excellent; for a price of $1.99, you get a high-quality, mil-spec part that will enhance the performance of your rifle.

I would absolutely recommend the CMMG, Inc AR15 Selector Detent to anyone building or upgrading an AR-15. It’s a worthwhile investment that will provide years of reliable service. Don’t overlook the importance of small parts! Upgrade your AR-15 with the CMMG detent and experience the difference a quality component can make.