Let’s Talk About Precision Reflex Adjustable Gas Block w/Straight 15.165 in Gas Tube
Adjustable gas blocks are game-changers for AR-platform rifles, allowing you to fine-tune the gas system for optimal performance. The Precision Reflex Adjustable Gas Block w/Straight 15.165 in Gas Tube promises precisely that. Precision Reflex (PRI) is known for its high-quality AR components, and this gas block is no exception.
I was chasing a smoother shooting experience from my AR-15, particularly when switching between different ammunition types. Overgassing was causing excessive recoil and wear, and I needed a solution. I was looking for a robust, reliable, and easily adjustable gas block.
Upon unboxing, the PRI gas block felt solid and well-machined. The magnesium phosphate finish gave it a durable and no-nonsense appearance. The included straight gas tube was a welcome addition, ensuring compatibility with my rifle-length system.
I considered a few other options, including gas blocks from Superlative Arms and Odin Works. I chose the PRI block primarily because of PRI’s reputation for reliability and the simplicity of the adjustment mechanism. Plus, the included gas tube specific to rifle-length systems saved me the hassle of sourcing one separately.
My initial impression was one of quiet confidence. This wasn’t a flashy, lightweight option; it was a serious tool built for performance. I was eager to install it and experience the difference.
Real-World Testing: Putting Precision Reflex Adjustable Gas Block w/Straight 15.165 in Gas Tube to the Test
First Use Experience
I first tested the Precision Reflex Adjustable Gas Block w/Straight 15.165 in Gas Tube at my local outdoor shooting range. The weather was dry and mild, perfect conditions for dialing in the gas system. I used a variety of .223 and 5.56 ammunition, including both lightweight target rounds and heavier, defensive loads.
The adjustment screw was easy to access and manipulate with a small Allen wrench. I started with the gas block fully open and gradually reduced the gas flow until the rifle cycled reliably with each ammunition type. I was able to noticeably reduce the felt recoil and muzzle rise.
The initial adjustment took about 30 minutes, but the results were immediately apparent. The rifle felt smoother and more controlled. There were no immediate issues or malfunctions.
Extended Use & Reliability
After several months of use, the PRI adjustable gas block has held up exceptionally well. I’ve put hundreds of rounds through the rifle in various conditions, including a dusty range day and a light rain. There are no signs of wear or loosening of the set screws.
Maintaining the gas block is relatively straightforward. I periodically clean the area around the adjustment screw with a brush and solvent. No other special care has been required.
Compared to my previous, non-adjustable gas block, the PRI unit is a significant upgrade. The ability to fine-tune the gas system has improved the rifle’s reliability, reduced recoil, and enhanced overall shooting experience. I no longer have to worry about overgassing issues when switching between ammunition types.
Breaking Down the Features of Precision Reflex Adjustable Gas Block w/Straight 15.165 in Gas Tube
Specifications
- Material: The gas block is constructed from 1141 high strength steel, ensuring durability and resistance to heat and corrosion. This is a key factor in its long-term reliability.
- Finish: It features a magnesium phosphate finish for added protection against the elements. This finish helps prevent rust and wear.
- Gas Tube Length: Includes a straight 15.165-inch gas tube, designed for rifle-length gas systems. This is a significant advantage for those building or modifying rifles with rifle-length gas systems.
- Adjustment: Uses a #10-32 set screw for precise gas adjustment. The adjustment screw allows for fine-tuning of the gas flow for optimal cycling with various ammunition types.
- Dimensions: The gas block is 1.61 inches tall, 1 inch in length, and 1.155 inches in width. This size makes it compatible with many AR-15 builds, though it may not fit under slim, low-profile handguards.
- Height from Bore Center: .780in from bore center to gas tube. This specification is crucial for proper alignment and gas flow.
- Set Screws: Held in place by 2 10-32 set screws. These screws securely attach the gas block to the barrel.
Performance & Functionality
The Precision Reflex Adjustable Gas Block w/Straight 15.165 in Gas Tube excels at its primary function: regulating the amount of gas entering the gas system. This allows for optimized cycling, reduced recoil, and improved reliability with different ammunition types. It performs exceptionally well.
The main strength is the adjustability. Being able to dial-in the gas system to match different loads is a significant advantage. The only potential weakness is that the adjustment screw can be difficult to access under certain handguards, though this is a common issue with adjustable gas blocks.
It definitely meets my expectations, even exceeds them. I have experienced improved reliability and smoother shooting.
Design & Ergonomics
The gas block’s design is simple and functional, prioritizing performance over aesthetics. The 1141 high strength steel construction and magnesium phosphate finish exude durability. While it may not be the lightest gas block on the market, its robust build inspires confidence.
The gas block is relatively easy to install and adjust, even for those with limited experience. The clear instructions and straightforward design minimize the learning curve.
Durability & Maintenance
Given its construction and finish, the Precision Reflex Adjustable Gas Block w/Straight 15.165 in Gas Tube is built to last. The PRI gas block should last for many years.
Maintaining the gas block is simple, requiring only occasional cleaning and inspection of the set screws. A little preventative maintenance goes a long way.
Accessories and Customization Options
The PRI gas block comes with the straight 15.165-inch gas tube and a roll pin. It is designed to work with standard AR-15 barrels and gas systems.
While it doesn’t directly support accessories, its adjustability enhances the performance of various AR-15 components, such as muzzle devices and buffer systems. It’s compatible with most AR-15 parts.
Pros and Cons of Precision Reflex Adjustable Gas Block w/Straight 15.165 in Gas Tube
Pros
- Precise Gas Adjustment: Allows for fine-tuning of the gas system for optimal cycling and reduced recoil. This is its core strength.
- Durable Construction: Made from 1141 high strength steel with a magnesium phosphate finish for long-lasting performance. Built to withstand harsh conditions.
- Includes Rifle-Length Gas Tube: Comes with a straight 15.165-inch gas tube, simplifying installation for rifle-length systems. Saves time and money.
- Enhanced Reliability: Improves overall rifle reliability by preventing overgassing or undergassing. This ensures consistent performance.
- Reputable Manufacturer:Precision Reflex is a well-respected name in the AR-15 industry, known for quality and reliability. Provides peace of mind.
Cons
- May Not Fit Under Some Handguards: The dimensions might not be compatible with very slim or low-profile handguards. Check dimensions carefully.
- Adjustment Screw Access: Access to the adjustment screw can be limited depending on the handguard design. Requires careful planning.
Who Should Buy Precision Reflex Adjustable Gas Block w/Straight 15.165 in Gas Tube?
The Precision Reflex Adjustable Gas Block w/Straight 15.165 in Gas Tube is perfect for AR-15 owners who want to optimize their rifle’s performance and reliability. This includes competitive shooters, hunters, and those who use a variety of ammunition types. It’s also ideal for those building or modifying AR-15s with rifle-length gas systems.
Those who prioritize a lightweight build above all else might want to consider a different option. Also, if you have no need to adjust your gas system, a standard, non-adjustable gas block will suffice.
A good set of Allen wrenches is a must-have accessory for adjusting the gas block. Also, consider using a thread-locking compound on the set screws to ensure they stay in place.
Conclusion on Precision Reflex Adjustable Gas Block w/Straight 15.165 in Gas Tube
The Precision Reflex Adjustable Gas Block w/Straight 15.165 in Gas Tube is a high-quality, reliable component that delivers on its promises. It allows you to fine-tune your AR-15’s gas system for optimal performance, resulting in reduced recoil, improved reliability, and enhanced shooting experience.
At $91.99, the price is justified by the quality of construction and the performance benefits it provides. It offers excellent value for the money.
I would definitely recommend the Precision Reflex Adjustable Gas Block w/Straight 15.165 in Gas Tube to anyone looking to upgrade their AR-15. If you want to improve your rifle’s performance and reliability, this is a great investment. Take control of your AR-15 and experience the difference an adjustable gas block can make.