The 400 Legend cartridge is quickly gaining popularity among shooters, and with that surge comes a growing demand for complete upper receivers. This guide delves into the key factors to consider when purchasing a 400 Legend complete upper, helping you make an informed decision based on your needs and budget.
Understanding the 400 Legend Cartridge
Before diving into upper receivers, let's briefly discuss the cartridge itself. The 400 Legend, developed by Winchester, is designed for use in AR-15-style platforms. Its primary advantages include:
- Reduced Recoil: Compared to more powerful cartridges like .308 Winchester, the 400 Legend offers significantly less recoil, making it easier to shoot and control.
- Subsonic Capabilities: Certain 400 Legend loads are subsonic, providing a stealthier shooting experience for hunting or other applications.
- AR-15 Compatibility: The cartridge leverages the popular AR-15 platform, making it readily adaptable and allowing for customization.
- Effective Hunting Cartridge: It offers sufficient stopping power for many medium-sized game animals.
Key Features to Look for in a 400 Legend Complete Upper
When selecting a 400 Legend complete upper, several crucial features should be at the forefront of your decision:
1. Barrel Length and Profile:
Barrel length influences accuracy and velocity. Shorter barrels (e.g., 10.5" - 16") offer maneuverability, while longer barrels (e.g., 18" - 20") generally provide increased accuracy and velocity. The barrel profile (e.g., lightweight, mid-length, heavy) also affects handling and accuracy. Consider your intended use—shorter barrels are ideal for close-quarters scenarios, while longer barrels are better suited for longer-range shooting.
2. Gas System:
The gas system plays a vital role in reliability and function. Common gas systems include direct impingement (DI) and piston-driven systems. DI systems are simpler and generally more affordable, but can introduce more fouling into the action. Piston systems are known for their cleaner operation and potentially longer lifespan but can be more expensive.
3. Bolt Carrier Group (BCG):
The BCG is a crucial component. Opt for a BCG manufactured from high-quality materials like properly heat-treated steel. A reputable manufacturer is essential for reliable function. Consider purchasing a BCG specifically designed and tested for the 400 Legend to ensure optimal performance.
4. Handguard:
The handguard protects the barrel and provides a mounting point for accessories like optics and lights. Consider the handguard's material (aluminum, polymer), length, and rail system (M-LOK, KeyMod, Picatinny). Choose a handguard that complements your shooting style and accessory needs.
5. Upper Receiver:
The upper receiver houses the bolt carrier group and other critical components. Ensure the receiver is made from high-quality materials (e.g., forged 7075-T6 aluminum) and is properly machined for reliable function.
Choosing the Right Manufacturer
Several reputable manufacturers produce high-quality 400 Legend complete uppers. Researching brands known for their reliability and customer service is essential. Read reviews and compare features to find the best fit for your needs.
Conclusion: Finding Your Perfect 400 Legend Complete Upper
Selecting a 400 Legend complete upper requires careful consideration of various factors. By understanding the cartridge's characteristics and weighing the importance of each component, you can choose an upper that meets your specific requirements and delivers reliable performance. Remember to prioritize quality over price and always select components from reputable manufacturers. Happy shooting!
