CMMG, Inc AR15 Spring, Bolt Catch Review

Let’s Dive into CMMG, Inc AR15 Spring, Bolt Catch

The CMMG, Inc AR15 Spring, Bolt Catch may seem like a mundane component, but it’s an absolutely critical piece in the AR-15 platform. This tiny coil of metal is responsible for ensuring the bolt catch functions correctly, holding the bolt open after the last round is fired and allowing for easy magazine changes. CMMG is a reputable manufacturer known for producing quality AR-15 parts, so this spring promises reliability.

I have built countless AR-15s, and the bolt catch spring is one of those parts that always seems to disappear into the ether during assembly. Inevitably, a spring will ping across the room, never to be seen again, leaving me scrambling for a replacement. Thus, I needed a reliable source for replacements, and the CMMG, Inc AR15 Spring, Bolt Catch seemed like a good bet.

Upon receiving the spring, my initial thought was, “It’s a spring.” Visually, it’s a small, silver-colored coil, nothing fancy, but it appeared well-made. The wire gauge seemed correct, and the coil spacing was consistent, indicating good manufacturing tolerances. I was eager to put it to use in my next build.

There aren’t really directly comparable products, most manufacturers offer equivalent bolt catch springs. I chose the CMMG spring because of CMMG‘s reputation for quality AR parts and readily availability. Others might opt for generic springs, but I prefer to stick with known manufacturers for critical components.

My first impression was positive. It looked like a quality spring, and I was relieved to have a ready replacement for the inevitable moment when the original spring makes its escape. I was ready to put it to the test.


Real-World Testing: Putting CMMG, Inc AR15 Spring, Bolt Catch to the Test

First Use Experience

I tested the CMMG, Inc AR15 Spring, Bolt Catch in my latest AR-15 build, specifically designed for 3-Gun competitions at my local range. The environment at the range can get fairly dusty and hot, especially during the summer months. The AR-15 saw hundreds of rounds during the initial testing phase.

The spring performed flawlessly. The bolt catch engaged every time the magazine was empty, and the bolt release functioned smoothly. I didn’t experience any malfunctions related to the bolt catch or its spring.

Installation was straightforward, and the spring seated properly within the lower receiver. There were no issues or surprises after the first use, it simply worked as intended.

Extended Use & Reliability

After several months of use, including multiple range trips and one local 3-Gun match, the CMMG, Inc AR15 Spring, Bolt Catch continues to function perfectly. There are no signs of wear or tear, and the spring tension remains consistent. I regularly clean my AR-15 after each range session, which includes inspecting the bolt catch and its spring.

Maintenance is simple; a quick wipe down with a lightly oiled cloth is all that’s needed. The spring itself doesn’t require any special care. I’ve had springs from other manufacturers that have weakened over time, but the CMMG spring shows no signs of doing so.

Compared to my previous experiences with generic springs, the CMMG spring definitely outperforms them in terms of reliability and durability. It provides consistent performance and gives me confidence that my AR-15 will function flawlessly.

Breaking Down the Features of CMMG, Inc AR15 Spring, Bolt Catch

Specifications

  • Manufacturer: CMMG, Inc.
  • Gun Model: AR-15.
  • Color: Silver.

These specs highlight the component’s simplicity. The spring is designed to fit any standard AR-15 lower receiver, its color is unimportant, and the manufacturer (CMMG) is known for quality.

Performance & Functionality

The CMMG, Inc AR15 Spring, Bolt Catch performs its job admirably. It provides the necessary tension to ensure the bolt catch engages reliably, holding the bolt open when the magazine is empty. This is crucial for quick magazine changes and maintaining a smooth shooting rhythm.

The spring’s strength is its simplicity and reliability. There are no fancy features, but it simply works as intended. No improvements are necessary, it is a simple and robust design.

The CMMG, Inc AR15 Spring, Bolt Catch meets expectations. It’s a simple part that performs its function consistently, offering peace of mind.

Design & Ergonomics

The CMMG, Inc AR15 Spring, Bolt Catch is a small, coiled spring made of steel. Its simple design belies its importance. The spring is lightweight and doesn’t add any noticeable weight to the AR-15.

The spring is user-friendly; installation is simple, and it requires no special tools or knowledge. The only ‘learning curve’ is not launching it across the room!

Durability & Maintenance

The spring is made of steel and should last for many years with proper care. I anticipate it lasting for the lifespan of the rifle. Maintenance is minimal, requiring only occasional cleaning.

Accessories and Customization Options

There are no accessories that come with the CMMG, Inc AR15 Spring, Bolt Catch. The spring itself is a standalone replacement part.

There are no real customization options for a bolt catch spring. However, it is compatible with most aftermarket bolt catches, including extended versions and those with different designs.

Pros and Cons of CMMG, Inc AR15 Spring, Bolt Catch

Pros

  • Reliable Performance: Ensures the bolt catch engages consistently.
  • Durable Construction: Made of high-quality steel for long-lasting use.
  • Easy Installation: Simple to install with no special tools required.
  • CMMG Quality: Peace of mind knowing it’s made by a reputable manufacturer.
  • Inexpensive: It’s a cheap insurance to keep a few on hand.

Cons

  • Small Size: Easy to lose during installation.
  • Can launch across the room when installing: This is a general issue when assembling AR-15 parts, not specific to this product, though.


Who Should Buy CMMG, Inc AR15 Spring, Bolt Catch?

The CMMG, Inc AR15 Spring, Bolt Catch is perfect for AR-15 builders, gun owners who perform their own maintenance, and anyone who wants to have spare parts on hand. It’s a must-have for anyone building or maintaining an AR-15.

Those who rely on gunsmiths for all their repairs might not need to purchase this spring individually. However, even they could benefit from having a spare on hand in case of emergencies.

A must-have accessory would be a lower receiver vise block to secure the lower receiver during installation, and a good set of punches and roll pin tools will make the process easier and less prone to launching the spring into oblivion.

Conclusion on CMMG, Inc AR15 Spring, Bolt Catch

The CMMG, Inc AR15 Spring, Bolt Catch is a simple yet crucial component for any AR-15. It provides reliable performance, is made of durable materials, and is easy to install. The price is justified considering the quality and peace of mind it offers.

I would absolutely recommend the CMMG, Inc AR15 Spring, Bolt Catch to anyone building or maintaining an AR-15. It’s a small investment that can save you a lot of frustration down the road. Keep a few on hand, you’ll thank yourself later.

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