Colt AR-15 upper receivers, especially the stripped versions, are highly sought after by both experienced builders and enthusiasts. This comprehensive guide dives deep into the world of Colt stripped upper receivers, exploring their features, benefits, and what to consider when purchasing one. We'll also cover key aspects to look for to ensure you're getting an authentic Colt product.
Understanding the Colt Stripped Upper Receiver
A Colt stripped upper receiver is the top half of an AR-15 rifle, devoid of any components like the bolt carrier group, charging handle, or barrel. It's essentially the foundation upon which you build your custom AR-15. Choosing a stripped upper receiver allows for maximum customization, giving you complete control over the final build. Colt's reputation for quality and reliability makes their stripped uppers a popular choice.
Key Features of a Genuine Colt Stripped Upper
- Material: High-quality, forged 7075-T6 aluminum. This alloy is known for its strength, durability, and resistance to wear and tear. Avoid any upper that doesn't specify this material.
- Manufacturing Process: Colt uppers are typically forged, not cast. Forging creates a stronger and more consistent product than casting. Look for markings that indicate forging (though these aren't always explicitly stated).
- Markings: Authentic Colt uppers will have distinct markings. These typically include the Colt logo, model number (if applicable), and other identifying marks. These vary depending on the specific model and year of manufacture. Pay close attention to these as counterfeits often misrepresent these details.
- Finish: Colt uppers often have a durable finish, usually a hardcoat anodizing, which protects against corrosion and wear. This is crucial for longevity. The specific color (e.g., black, flat dark earth) will vary.
- Compatibility: Colt AR-15 upper receivers are generally compatible with other Mil-Spec lower receivers and components. However, always double-check compatibility before purchasing any additional parts.
Why Choose a Colt Stripped Upper Receiver?
Colt's reputation precedes it. Their stripped uppers offer several advantages:
- Reliability: Colt is a trusted name in firearms manufacturing. Their stripped uppers are built to withstand rigorous use and are known for their reliability.
- Quality: Colt uses high-quality materials and manufacturing processes, resulting in a superior product compared to many other brands.
- Customization: The stripped nature of the upper allows for complete customization. This gives you the freedom to build an AR-15 tailored to your specific needs and preferences.
- Resale Value: Genuine Colt parts tend to hold their value well, making them a good investment.
Identifying Counterfeit Colt Upper Receivers
The popularity of Colt AR-15 parts makes them a target for counterfeiters. Here's how to spot a fake:
- Poor Markings: Blurry, uneven, or incorrect markings are a major red flag.
- Material Defects: Examine the receiver for imperfections, inconsistencies in finish, or signs of casting rather than forging.
- Pricing: If the price is significantly lower than the market value, be wary.
- Suspicious Seller: Buy from reputable dealers with a proven track record. Avoid questionable online sellers.
Table: Genuine vs. Counterfeit Colt Upper Receiver Characteristics
| Feature | Genuine Colt | Counterfeit Colt |
|---|---|---|
| Markings | Clear, crisp, consistent | Blurry, inconsistent, possibly incorrect |
| Material | Forged 7075-T6 aluminum | Potentially cast aluminum, inferior material |
| Finish | Consistent, durable hardcoat anodizing | Uneven, easily scratched |
| Price | In line with market value | Significantly lower than market value |
Building Your AR-15 with a Colt Stripped Upper
Once you have your Colt stripped upper receiver, you'll need to assemble the rest of your AR-15. This involves installing the barrel, gas system, bolt carrier group, charging handle, and other components. This process requires careful attention to detail and potentially specialized tools. Numerous online resources and videos guide you through the assembly process.
Remember: Always prioritize safety. Improper assembly can lead to malfunctions or even injury. If you're unsure, seek professional assistance.
Conclusion: The Colt Advantage
A Colt stripped upper receiver represents a solid investment for anyone building a custom AR-15. Its reliability, quality, and potential for customization make it a popular choice among both experienced builders and newcomers to the AR-15 platform. However, vigilance in identifying counterfeit products is crucial to ensure you’re receiving the genuine Colt quality you expect. Always purchase from reputable dealers and carefully inspect your receiver for any signs of defects before commencing assembly.