Radical Firearms RF Upper Assembly 7.5in 5.56 M4 Contour w/ A2 Flash Hider Review

Let’s Talk About Radical Firearms RF Upper Assembly 7.5in 5.56 M4 Contour w/ A2 Flash Hider

For years, I’ve been building and customizing AR platforms for everything from competitive shooting to tactical drills. When I heard about the Radical Firearms RF Upper Assembly 7.5in 5.56 M4 Contour w/ A2 Flash Hider, I was immediately intrigued by its compact size and potential for CQB applications. Radical Firearms has a reputation for providing affordable AR components, so I wanted to see if this upper assembly could deliver performance without breaking the bank.

My primary need was to create a highly maneuverable AR pistol for close-quarters training. I needed something shorter and lighter than my standard 16-inch carbine. The Radical Firearms upper seemed to offer a promising solution.

Unboxing the upper assembly, I was immediately impressed by the solid feel. The anodized finish looked clean, and the M-LOK handguard felt robust. While it wasn’t as lightweight as some premium options I’ve handled, it definitely felt like a quality piece.

Compared to similar uppers from brands like Palmetto State Armory and Aero Precision, the Radical Firearms offering stood out due to its aggressive price point and the included A2 flash hider. While Aero Precision offers slightly more refined machining, the price difference made the Radical Firearms upper a more attractive option for my budget build. My initial impression was positive; I was excited to see how it performed on the range.

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Real-World Testing: Putting Radical Firearms RF Upper Assembly 7.5in 5.56 M4 Contour w/ A2 Flash Hider to the Test

First Use Experience

I first tested the Radical Firearms RF Upper Assembly 7.5in 5.56 M4 Contour w/ A2 Flash Hider at my local outdoor shooting range. I paired it with a mil-spec lower receiver and a brace, along with a red dot optic.

The upper performed well in relatively dry conditions, exhibiting consistent cycling and acceptable accuracy out to 50 yards. The short barrel produced a significant muzzle flash and concussion, as expected, but the A2 flash hider helped to mitigate some of the blast. The initial experience was positive.

The only minor issue was the need to adjust the gas block slightly to achieve optimal cycling with different ammunition types.

Extended Use & Reliability

After several months of regular use, the Radical Firearms RF Upper Assembly 7.5in 5.56 M4 Contour w/ A2 Flash Hider has held up surprisingly well. I’ve put several hundred rounds through it, ranging from cheap steel-cased ammo to premium brass rounds.

There are minor signs of wear on the anodized finish, particularly around the ejection port, but nothing excessive. Cleaning and maintenance are straightforward; a standard AR cleaning kit works perfectly. Compared to a more expensive Daniel Defense upper I own, the Radical Firearms upper requires slightly more frequent cleaning to maintain optimal performance, particularly with lower-quality ammunition. It continues to provide reliable performance.

Breaking Down the Features of Radical Firearms RF Upper Assembly 7.5in 5.56 M4 Contour w/ A2 Flash Hider

Specifications

• The Radical Firearms RF Upper Assembly 7.5in 5.56 M4 Contour w/ A2 Flash Hider is chambered in 5.56x45mm NATO. This caliber is widely available and versatile, suitable for a range of applications.
• The barrel is 7.5 inches long with a 1-7 twist rate. The shorter barrel length makes the firearm highly maneuverable, while the 1-7 twist rate is ideal for stabilizing heavier projectiles.
• It features an A2 flash hider to help reduce muzzle flash. This is especially important on short-barreled firearms to minimize the visual signature.
• The Radical Firearms upper assembly also includes a 7-inch Hybrid Rail System – MHR. This provides ample space for mounting accessories such as lights, lasers, and grips.
• The upper receiver is anodized black for corrosion resistance. This ensures durability and longevity, even under harsh conditions.
• It features an M4 contour barrel. This profile balances weight and rigidity, contributing to overall handling.
• It is designed for the M4 platform. Ensuring compatibility with most AR-15 lower receivers.
• It does not include a magazine. Keep in mind that you need to acquire a compatible magazine.

Performance & Functionality

The Radical Firearms RF Upper Assembly 7.5in 5.56 M4 Contour w/ A2 Flash Hider performs its job adequately, providing acceptable accuracy and reliable cycling. It does what it is designed to do at an affordable price.

Its strengths include its compact size, making it ideal for CQB scenarios. The main weakness is the increased muzzle flash and concussion due to the short barrel, which can be fatiguing during extended shooting sessions. It generally meets expectations for an entry-level AR upper assembly.

Design & Ergonomics

The build quality is decent for the price point. The materials used are standard for AR components. The weight is manageable, although a bit heavier than some premium lightweight options.

The design is user-friendly, with no significant learning curve for those familiar with the AR platform.

Durability & Maintenance

The Radical Firearms RF Upper Assembly 7.5in 5.56 M4 Contour w/ A2 Flash Hider appears to be reasonably durable. With proper maintenance, it should last for a significant number of rounds.

Maintenance is simple and straightforward. The anodized finish is relatively easy to clean.

Accessories and Customization Options

The Radical Firearms RF Upper Assembly 7.5in 5.56 M4 Contour w/ A2 Flash Hider is highly customizable. The M-LOK handguard provides ample space for mounting accessories such as lights, lasers, and vertical grips.

It’s compatible with a wide range of AR-15 accessories, including optics, triggers, and buffer tubes. The standard barrel thread allows for easy replacement of the flash hider with a suppressor or other muzzle device.

Pros and Cons of Radical Firearms RF Upper Assembly 7.5in 5.56 M4 Contour w/ A2 Flash Hider

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Who Should Buy Radical Firearms RF Upper Assembly 7.5in 5.56 M4 Contour w/ A2 Flash Hider?

The Radical Firearms RF Upper Assembly 7.5in 5.56 M4 Contour w/ A2 Flash Hider is perfect for budget-conscious builders, those prioritizing maneuverability, and individuals seeking a compact AR pistol for CQB training. It is also suited for those who want to experiment with short-barreled AR platforms without investing heavily upfront.

This product should be skipped by those prioritizing maximum accuracy at long ranges or those seeking a firearm with a minimal muzzle flash signature. Individuals who demand premium fit and finish should also consider alternatives.

A must-have accessory is an upgraded muzzle device such as a compensator or suppressor to mitigate the increased muzzle flash and concussion. A quality red dot optic is also essential for rapid target acquisition.

Conclusion on Radical Firearms RF Upper Assembly 7.5in 5.56 M4 Contour w/ A2 Flash Hider

The Radical Firearms RF Upper Assembly 7.5in 5.56 M4 Contour w/ A2 Flash Hider offers a compelling value proposition for those seeking an affordable and compact AR upper assembly. While it may not boast the refined features of premium options, it delivers reliable performance and acceptable accuracy at a fraction of the cost.

The price is definitely justified for what you get. It is a great entry-level option.

I would personally recommend it to anyone looking to build a budget-friendly AR pistol for close-quarters applications. If you are looking to build an AR pistol, this is a great starting point!