Finding the right upper receiver is crucial for building or upgrading your AR-15 platform. The Colt M4 upper receiver, particularly the stripped version, is a popular choice among enthusiasts and professionals alike, known for its quality and reliability. This guide will delve into the specifics of a stripped Colt M4 upper receiver, its features, benefits, and what to consider when purchasing one.
Understanding the "Stripped" Designation
A "stripped" upper receiver means it arrives without any components installed. This contrasts with a "complete" upper receiver, which includes the bolt carrier group, charging handle, forward assist, dust cover, and other parts. Buying a stripped upper offers several advantages:
- Customization: You have complete control over the components you choose, allowing for a highly personalized build tailored to your specific needs and preferences.
- Cost Savings (Potentially): Depending on the components you already own, buying a stripped upper and assembling it yourself can sometimes be more economical than purchasing a complete upper.
- Component Selection: You can select high-quality components from various manufacturers to optimize performance and reliability.
Key Features of the Colt M4 Upper Receiver
Colt's reputation for manufacturing high-quality firearms extends to their upper receivers. Key features include:
- Forged Construction: Colt M4 upper receivers are typically forged from high-quality aluminum alloy, offering superior strength and durability compared to cast receivers. This ensures longevity and resistance to wear and tear, even under heavy use.
- Mil-Spec Dimensions: These receivers adhere to military specifications, ensuring proper fit and function with other Mil-Spec components. This compatibility is vital for a reliable AR-15 build.
- M4 Feed Ramps: The presence of M4 feed ramps facilitates reliable feeding of ammunition, particularly critical in high-stress situations. This design improvement over earlier AR-15 designs enhances overall reliability.
- T-Marks: Colt often incorporates their distinctive "T" markings, providing a visual confirmation of authenticity. However, always verify authenticity through reputable dealers to avoid counterfeits.
What to Consider Before Purchasing
Before buying a stripped Colt M4 upper receiver, consider these factors:
- Budget: While Colt products are known for their quality, they also command a higher price point compared to some competitors. Assess your budget accordingly.
- Compatibility: Ensure compatibility with your lower receiver and other components. Using Mil-Spec parts is essential for reliable function.
- Authenticity: Be wary of counterfeit products. Purchase from reputable dealers and examine the receiver for Colt's markings and other indicators of authenticity.
- Intended Use: Consider the intended use of your AR-15 platform. This will inform your component selection and overall build.
Assembling Your Colt M4 Upper
Assembling a stripped upper receiver requires some mechanical aptitude and the right tools. Numerous online resources, including videos and detailed guides, can walk you through the process. Take your time, follow instructions carefully, and ensure everything is properly aligned and tightened.
Conclusion
The Colt M4 stripped upper receiver provides a solid foundation for a custom AR-15 build. Its quality, durability, and Mil-Spec compatibility make it a popular choice among serious shooters. By carefully considering the factors outlined above and understanding the assembly process, you can build a reliable and high-performing AR-15 platform. Remember, always prioritize safety and follow proper firearm handling procedures.
