Partial AR M4 Lower Parts – Gunbuilder CMMG 55CA601

Premium Quality Partial AR M4 Lower Parts Kit for Gunbuilders

The Partial AR M4 Lower Parts Kit Gunbuilder CMMG 55CA601 is a high-quality lower receiver parts kit designed for builders who prefer to customize their rifle with their own grip, trigger guard, and fire control group. Manufactured by CMMG, this kit provides essential lower receiver components, ensuring compatibility, durability, and smooth operation for your AR-15 or M4 rifle.

Why Choose the Partial AR M4 Lower Parts Kit?

If you are looking for a reliable and high-quality Partial AR M4 Lower Parts Kit, this CMMG 55CA601 package is an excellent choice. Whether you are a seasoned firearm builder or a DIY enthusiast, this kit provides the necessary components to complete your lower receiver while allowing full customization of key parts.

What’s Included in the Partial AR M4 Lower Parts Kit?

This Partial AR M4 Lower Parts Kit contains the essential hardware needed to assemble your lower receiver, minus the pistol grip, trigger guard, and fire control group. The components in this kit include:

• Bolt Catch Assembly – Includes the bolt catch, roll pin, plunger, and spring for reliable bolt engagement.
• Trigger/Hammer Retaining Pins – Secure your trigger and hammer assembly with precision-engineered retaining pins.
• Safety Selector Components – Includes safety selector, detent, and spring for smooth and reliable operation.
• Magazine Catch Assembly – Magazine catch, spring, and release button for secure and easy magazine changes.
• Pivot & Takedown Pins – Includes detents and springs for smooth pin movement.
• Buffer Retainer & Spring – Helps retain the buffer securely within the buffer tube.

Key Features of the Partial AR M4 Lower Parts Kit

✔ High-Quality Components – Manufactured by CMMG for superior performance and reliability. ✔ Precision Fit – Designed for AR-15 and M4 lower receivers for a perfect fit. ✔ Customizable Build – Allows you to select your own pistol grip, trigger guard, and fire control group. ✔ Durable Construction – High-strength materials ensure longevity and reliability. ✔ Easy Installation – Designed for hassle-free assembly and compatibility with mil-spec lower receivers.

Benefits of Using the Partial AR M4 Lower Parts Kit

1. Customization Freedom

One of the major advantages of using a Partial AR M4 Lower Parts Kit is the flexibility it offers. Builders can select their preferred pistol grip, trigger guard, and trigger group, ensuring a personalized firearm setup.

2. Enhanced Performance

With high-quality components from CMMG, this Partial AR M4 Lower Parts Kit ensures smooth and reliable function, contributing to better firearm performance and longevity.

3. Cost-Effective Solution

Instead of purchasing a full kit that includes parts you may not need, the Partial AR M4 Lower Parts Kit allows builders to focus on essential components, reducing overall costs while maintaining quality.

Installation Guide for Partial AR M4 Lower Parts Kit

Step 1: Install Bolt Catch Assembly

• Insert the bolt catch plunger and spring into the lower receiver.
• Align the bolt catch and secure it with the provided roll pin.

Step 2: Install Trigger/Hammer Retaining Pins

• Place your chosen fire control group (trigger and hammer) into the lower receiver.
• Secure them using the retaining pins included in the Partial AR M4 Lower Parts Kit.

Step 3: Install Safety Selector Components

• Insert the safety selector into the receiver.
• Place the detent and spring into their respective positions, ensuring smooth operation.

Step 4: Install Magazine Catch Assembly

• Insert the magazine catch through the lower receiver.
• Attach the spring and secure it with the release button.

Step 5: Install Pivot & Takedown Pins

• Insert the takedown and pivot pins into their designated slots.
• Install detents and springs for proper function.

Step 6: Install Buffer Retainer & Spring

• Secure the buffer retainer and spring in place to hold the buffer within the buffer tube.

Who Should Buy the Partial AR M4 Lower Parts Kit?

🔹 DIY Gunbuilders – Perfect for those who enjoy customizing their firearm. 🔹 Firearm Enthusiasts – Ideal for individuals looking to upgrade their AR-15 or M4 with quality components. 🔹 Tactical Shooters – Ensures reliable and durable parts for rigorous use. 🔹 Professional Gunsmiths – A great choice for gunsmiths working on custom builds.

Comparison: Partial AR M4 Lower  vs. Complete Lower Parts Kit

Final Thoughts on the Partial AR M4 Lower Parts Kit

The Partial AR M4 Lower Parts Kit Gunbuilder CMMG 55CA601 is a must-have for anyone looking to build or upgrade their AR-15/M4. With high-quality materials, easy installation, and the freedom to customize, this kit is an excellent investment for firearm enthusiasts, DIY builders, and professional gunsmiths.

Order Your Partial AR M4 Lower Parts Kit Today!

If you are ready to build a high-performance AR-15/M4 with premium components, order your Partial AR M4 Lower Parts Kit now and take your firearm customization to the next level!