The 20" bull barrel complete upper is a popular choice among serious shooters, offering a compelling blend of accuracy, stability, and overall performance. This comprehensive guide will explore the key features, benefits, and considerations when choosing a 20" bull barrel complete upper for your AR-15 platform.
What is a 20" Bull Barrel Complete Upper?
A 20" bull barrel complete upper receiver group is a pre-assembled unit containing the upper receiver, a 20-inch bull barrel, and other essential components like a gas system, handguard, and bolt carrier group. The "bull barrel" designation refers to its thicker profile, extending nearly the entire length of the barrel. This heavier profile significantly reduces barrel vibrations and heat dissipation, leading to improved accuracy and sustained firing capabilities.
Key Features and Benefits:
- Enhanced Accuracy: The thicker profile of the bull barrel minimizes harmonic vibrations, resulting in superior shot grouping and greater precision at longer ranges. This is particularly beneficial for target shooting, hunting, and long-range applications.
- Improved Stability: The added weight of the bull barrel contributes to greater stability, especially during extended firing sessions. This reduces muzzle climb and allows for faster follow-up shots.
- Increased Barrel Life: The robust construction of the bull barrel helps to extend its lifespan, allowing for more rounds fired before significant wear and tear occur.
- Consistent Performance: The heavier barrel helps maintain consistent accuracy and performance even after firing numerous rounds, minimizing the impact of heat buildup.
- Long-Range Capability: The 20-inch barrel length is ideal for longer-range shooting, providing greater velocity and improved ballistic performance.
Choosing the Right 20" Bull Barrel Complete Upper: Considerations
Selecting the ideal 20" bull barrel complete upper requires careful consideration of several factors:
1. Barrel Material:
- Chrome Moly (4140): A popular and cost-effective choice, offering a good balance of strength and durability.
- Stainless Steel: Offers superior corrosion resistance and longevity, making it ideal for harsh environments.
- Chrome Lined: Provides additional protection against wear and tear and corrosion, extending barrel life.
2. Gas System:
- Mid-Length Gas System: Offers a balance between reliability and reduced recoil.
- Carbine-Length Gas System: Faster cycling, but potentially more recoil and increased wear on components.
- Pistol-Length Gas System: Best for suppressed applications, but often requires specific tuning for reliable function.
3. Handguard:
The choice of handguard influences ergonomics, weight, and heat management. Consider materials like aluminum, polymer, and carbon fiber, selecting a design that best suits your shooting style and preferences.
4. Finish:
Different finishes offer varying levels of corrosion resistance and aesthetic appeal. Common options include parkerizing, Melonite, and Cerakote.
Applications of a 20" Bull Barrel Complete Upper:
The 20" bull barrel complete upper is well-suited for a range of applications, including:
- Long-Range Shooting: Its exceptional accuracy and stability make it ideal for long-range target shooting and competition.
- Hunting: Provides the precision needed for ethical and effective hunting at longer distances.
- Tactical Applications: While not as common for close-quarters combat, it can be used effectively in situations requiring accurate fire at longer ranges.
Conclusion:
A 20" bull barrel complete upper represents a significant investment for serious shooters seeking enhanced accuracy, stability, and performance. By carefully considering the factors outlined above, you can select a complete upper that perfectly aligns with your shooting needs and preferences. Remember to always prioritize safety and follow proper firearms handling procedures.
