The AR-15 platform's adaptability is legendary, and nowhere is this more evident than in the variety of charging handle options available. While the standard charging handle located on the right side works well for most shooters, the side-charging upper receiver/bolt carrier group (BCG) combo offers distinct advantages for specific applications and user preferences. This guide delves into the benefits, drawbacks, and considerations when choosing a side-charging AR-15 upper receiver/BCG combination.
What is a Side-Charging AR-15 Upper Receiver/BCG?
A side-charging AR-15 upper receiver/BCG combo replaces the standard, rear-located charging handle with a handle positioned on the left or right side of the upper receiver. This modification alters the method of manipulating the bolt carrier group, impacting how the weapon cycles and is operated. The entire system, encompassing both the upper receiver and the modified BCG, is designed to function seamlessly as a unit.
Advantages of a Side-Charging System
Several key advantages make side-charging uppers attractive to certain shooters:
1. Ambidextrous Operation:
The most significant benefit is enhanced ambidextrous operation. Left-handed shooters or those needing to manipulate the charging handle while maintaining a specific shooting position find this particularly valuable. It eliminates the need to reach across the weapon, potentially disrupting their shooting stance or grip.
2. Suppressed Shooting:
Side charging uppers are often favored by those using suppressed AR-15s. The reduced recoil impulse, coupled with the side charging handle's placement, minimizes the chance of the hot gases and ejected brass impacting the shooter's face.
3. Improved Ergonomics in Certain Applications:
In close-quarters combat (CQB) scenarios or when operating in confined spaces, the side-charging handle provides a more comfortable and efficient way to charge the weapon without compromising the shooter's position or grip.
4. Use with Certain Accessories:
Certain accessories, like forward-mounted optics or large night vision devices, can interfere with the operation of a traditional charging handle. A side-charging upper avoids this interference, maintaining smooth and reliable operation.
Disadvantages of a Side-Charging System
While advantageous in some contexts, side-charging systems do have some drawbacks:
1. Increased Complexity and Cost:
Side-charging uppers are generally more expensive than standard uppers due to the specialized machining and modifications required. The BCG itself is also typically more complex and potentially more costly to replace or repair.
2. Potential for Reliability Issues:
While reputable manufacturers produce high-quality side-charging systems, there's always a slightly higher risk of malfunctions compared to standard systems. This is primarily due to the added complexity of the mechanism. Choosing a reputable brand is crucial to mitigate this risk.
3. Reduced Accessibility for Some Shooters:
While it improves ambidextrous operation for many, the side charging handle may be less accessible for shooters with specific physical limitations or preferences.
Choosing the Right Side-Charging Upper Receiver/BCG Combo
Selecting the right side-charging upper receiver/BCG combo requires careful consideration of your needs and shooting style. Key factors to consider include:
- Manufacturer Reputation: Choose a reputable manufacturer known for producing high-quality, reliable components.
- Materials: Look for uppers constructed from durable materials like forged aluminum.
- Finish: A durable finish (e.g., hard-coat anodizing) is essential for protecting the upper receiver from wear and corrosion.
- Compatibility: Ensure compatibility with your existing lower receiver and other components.
- Left or Right Side Charging: Determine which side best suits your needs and shooting style.
Conclusion
The AR-15 side-charging upper receiver/BCG combo offers a valuable alternative to the standard charging handle configuration. While it does come with some trade-offs, the benefits in terms of ambidextrous operation, suppressed shooting, and improved ergonomics in certain applications make it a worthwhile consideration for many shooters. However, careful research and selection of a reputable manufacturer are crucial to ensure reliability and optimal performance. Ultimately, the best choice depends on individual needs and preferences.
