The popularity of AR-15s, combined with the increasing acceptance of suppressors, has fueled a demand for uppers specifically designed for optimal performance with silencers. This guide delves into the key features and considerations when choosing an AR-15 upper receiver optimized for suppressor use. We'll explore what makes these uppers distinct and how to select the right one for your needs.
Key Features of Suppressor-Ready AR-15 Uppers
Several features distinguish AR-15 uppers designed for suppressors from standard models. These features aim to improve accuracy, reliability, and overall shooting experience when using a suppressor.
1. Longer Gas Systems
A longer gas system, such as a mid-length or carbine-length gas system, is often preferred for suppressor use. These systems provide more controlled gas pressure and reduced recoil compared to shorter gas systems like pistol-length. The controlled gas impulse helps mitigate the added weight and backpressure from the suppressor, leading to improved reliability and reduced wear on the bolt carrier group (BCG).
2. Threaded Barrels
A properly threaded barrel is essential for attaching a suppressor. The barrel's threading must match the threads on your suppressor, usually 1/2-28 or 5/8-24. Choosing the right thread pitch is critical for a secure and leak-free connection. Furthermore, consider the barrel length; a longer barrel generally offers increased velocity and accuracy, but a shorter barrel can provide increased maneuverability.
3. Robust Construction
Suppressor use often results in increased wear and tear on the upper receiver and barrel. Look for uppers constructed from high-quality materials like durable steel or aluminum alloys that can withstand the additional stress.
4. Gas Block Considerations
The type of gas block is another important aspect. Low-profile gas blocks are popular due to their sleek profile and compatibility with various handguards. However, some shooters prefer adjustable gas blocks, which allow for fine-tuning the gas pressure to optimize the system with a suppressor attached. This adjustment can be especially beneficial to counter the increased backpressure a suppressor creates.
Choosing the Right Upper: Factors to Consider
Selecting the right suppressor-ready upper receiver involves careful consideration of several factors:
1. Caliber:
The caliber of your AR-15 dictates which upper receiver and barrel you can use. Common calibers include .223 Wylde (a popular choice for its versatility) and 5.56 NATO.
2. Barrel Length:
This decision balances accuracy, velocity, and maneuverability. Longer barrels offer better accuracy and velocity, while shorter barrels are easier to handle in close quarters.
3. Gas System Length:
As discussed earlier, mid-length and carbine-length gas systems generally provide better reliability with suppressors than pistol-length systems.
4. Handguard:
The handguard should be compatible with your chosen upper receiver and allow for sufficient clearance for the suppressor. Consider the material (e.g., aluminum, polymer) and length.
5. Budget:
Suppressor-ready uppers range in price depending on features and materials. Determine your budget before making a purchase.
Conclusion: Optimizing Your AR-15 for Suppressed Shooting
Investing in a high-quality, suppressor-optimized AR-15 upper receiver is crucial for reliable and accurate suppressed shooting. By understanding the key features and considering the factors outlined above, you can choose an upper that enhances your shooting experience and ensures optimal performance with your suppressor. Remember to always consult with a qualified firearms professional before making any modifications to your firearm.
