CMMG, Inc Coll Butt Stock Kit, 6 Position Review

Let’s Dive into CMMG, Inc Coll Butt Stock Kit, 6 Position

The CMMG, Inc Coll Butt Stock Kit, 6 Position is a comprehensive solution for completing the lower receiver of your AR-15 build. CMMG is a reputable manufacturer known for quality components, and this kit provides essential parts, including the buffer tube, buffer assembly, spring, and buttstock. It promises a straightforward installation and reliable performance.

My journey toward this kit started with a desire to build an AR-15 from the ground up. I was looking for a reliable and complete kit that wouldn’t break the bank, and the CMMG kit seemed like a solid option. The appeal was its completeness and the reputation of CMMG for producing quality AR parts.

Upon unboxing, my initial impression was positive. The parts appeared well-made, and the finish on the buffer tube and buttstock seemed durable. The weight felt appropriate, suggesting quality materials were used.

Compared to other kits I considered, such as those from Aero Precision or Brownells, the CMMG kit stood out due to its comprehensive nature at a competitive price point. Some kits require you to purchase the buffer and spring separately. This one included everything needed for a functional collapsible stock.

I was cautiously optimistic. While the parts looked good, the real test would be in the installation and performance on the range. I was excited to start my build and test the kit’s reliability.


Real-World Testing: Putting CMMG, Inc Coll Butt Stock Kit, 6 Position to the Test

First Use Experience

My initial testing ground for the CMMG, Inc Coll Butt Stock Kit, 6 Position was the local shooting range. I installed the kit on my AR-15 lower receiver and immediately appreciated the ease of installation. The buffer tube threaded smoothly, and the buttstock slid on without issue.

During my range session, the rifle cycled flawlessly. The 6-position adjustability of the buttstock proved valuable, allowing me to find the perfect length of pull for comfortable shooting. There were no malfunctions or issues related to the buttstock kit.

The initial performance exceeded my expectations. I was particularly impressed with the smooth operation and the solid feel of the buttstock.

Extended Use & Reliability

After several months of consistent use, the CMMG, Inc Coll Butt Stock Kit, 6 Position has held up remarkably well. I’ve put several hundred rounds through my AR-15 with this kit installed. It has shown no signs of wear and tear beyond some minor cosmetic scratches.

The durability has been impressive. The buttstock remains firmly in place, and the buffer tube shows no signs of loosening or damage.

Maintenance has been simple. I clean the buffer tube and spring periodically with standard gun cleaning solvent, and everything remains in excellent working order. Compared to other budget-friendly options I’ve used in the past, this one has significantly outlasted them in terms of durability and consistent performance.

Breaking Down the Features of CMMG, Inc Coll Butt Stock Kit, 6 Position

Specifications

The CMMG, Inc Coll Butt Stock Kit, 6 Position includes the following specifications:

  • CMMG 6-Position Receiver Extension (Buffer Tube): Constructed from durable aluminum, providing six length-of-pull adjustments for personalized comfort. The Mil-Spec sizing ensures compatibility with a wide range of AR-15 lower receivers.
  • Carbine Buffer Assembly: A standard weight buffer designed to ensure proper cycling of the AR-15 platform. This contributes to reduced recoil and improved control during rapid firing.
  • Carbine Action Spring: A durable spring providing the necessary tension for reliable cycling of the bolt carrier group. Its consistent performance prevents short-stroking and other common AR-15 malfunctions.
  • 6-Position Buttstock Assembly: Made from robust polymer, this buttstock is lightweight and offers six adjustable positions. The streamlined design ensures comfortable cheek weld and enhanced control.
  • Manufacturer: CMMG.
  • Gun Model: AR-15.
  • Gun Type: Rifle.
  • Buffer Tube Size: Mil-Spec.
  • Weight: 2 lb.
  • Length: 15 in.
  • Fabric/Material: Alum/Poly.

These specifications are crucial for reliable performance and proper function. The Mil-Spec buffer tube ensures compatibility, while the quality materials contribute to the kit’s overall durability.

Performance & Functionality

The CMMG, Inc Coll Butt Stock Kit, 6 Position performs its job admirably. The adjustable buttstock allows for a comfortable and customizable shooting experience, accommodating various body types and shooting styles. The buffer and spring work together to ensure smooth and reliable cycling of the AR-15.

The kit’s strength lies in its simplicity and reliability. There are no unnecessary frills, just solid performance.

It meets expectations for a standard AR-15 buttstock kit. It is a functional and reliable option.

Design & Ergonomics

The CMMG, Inc Coll Butt Stock Kit, 6 Position boasts a straightforward and functional design. The polymer buttstock is lightweight and comfortable against the shoulder.

The adjustability is intuitive and easy to use. The Mil-Spec dimensions guarantee compatibility with most AR-15 lowers, minimizing any installation issues.

Durability & Maintenance

Given its construction from quality aluminum and polymer, the CMMG, Inc Coll Butt Stock Kit, 6 Position is designed to last. With proper care and maintenance, it should withstand years of use.

The kit is easy to maintain. Regular cleaning of the buffer tube and spring is all that is needed to ensure optimal performance.

Accessories and Customization Options

The CMMG, Inc Coll Butt Stock Kit, 6 Position itself doesn’t come with many accessories. However, the Mil-Spec buffer tube is compatible with a wide range of aftermarket buttstocks.

You could easily upgrade the buttstock to a Magpul MOE or B5 Systems Bravo. The buffer and spring can also be upgraded to heavier or lighter options to fine-tune the cycling of your AR-15.

Pros and Cons of CMMG, Inc Coll Butt Stock Kit, 6 Position

Pros

  • Complete Kit: Includes everything needed for a functional collapsible stock, simplifying the build process.
  • Mil-Spec Compatibility: Ensures easy installation and compatibility with a wide range of AR-15 lower receivers.
  • Durable Construction: Quality aluminum buffer tube and robust polymer buttstock provide lasting performance.
  • Adjustable Length of Pull: The 6-position buttstock allows for personalized comfort and improved control.
  • Reliable Performance: Smooth cycling and consistent operation contribute to a positive shooting experience.

Cons

  • Basic Buttstock Design: The included buttstock is functional but lacks advanced features like adjustable cheek risers.
  • Standard Buffer Weight: May require upgrading the buffer for optimal performance with specific AR-15 configurations or calibers.


Who Should Buy CMMG, Inc Coll Butt Stock Kit, 6 Position?

The CMMG, Inc Coll Butt Stock Kit, 6 Position is perfect for budget-conscious AR-15 builders looking for a reliable and complete kit. It is ideal for those who prioritize functionality and durability over advanced features.

Those looking for a premium buttstock with advanced features like adjustable cheek risers or enhanced recoil absorption should skip this product. Also, those building specialized AR-15s (e.g., short-barreled rifles) may need to consider a different buffer weight.

A must-have modification would be an upgraded buttstock if you prefer a more ergonomic or feature-rich design. Another consideration is upgrading the buffer if you have issues with cycling reliability.

Conclusion on CMMG, Inc Coll Butt Stock Kit, 6 Position

The CMMG, Inc Coll Butt Stock Kit, 6 Position is a solid and reliable option for completing your AR-15 lower receiver. It offers excellent value for the money.

The price is justified by the comprehensive nature of the kit and the quality of the components. You get everything needed for a functional collapsible stock at a competitive price.

I would personally recommend it to anyone building an AR-15 on a budget who needs a reliable and functional buttstock kit. It’s a no-frills solution that simply gets the job done. If you’re looking for a reliable and affordable way to complete your AR-15 lower receiver, the CMMG, Inc Coll Butt Stock Kit, 6 Position is definitely worth considering.

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