RADICAL FIREARMS AR-15 RPR

The Radical Firearms AR-15 RPR (Radical Precision Rifle) is a modern, affordable, and feature-packed direct impingement rifle designed for tactical, sporting, and defensive applications. Built to meet the needs of a wide range of shooters, the AR-15 RPR offers a high-quality free-floating M-LOK handguard, full-length Picatinny rail, and a durable 16-inch 5.56 NATO barrel. Whether for personal defense, competition, or recreational shooting, this rifle delivers a balance of reliability, accuracy, and customization options at an attractive price point.

In this document, we will explore the design, specifications, performance, comparisons, maintenance, and customization options of the Radical Firearms AR-15 RPR in detail.

History and Development

Radical Firearms, founded in 2013 in Texas, quickly gained a reputation for producing affordable, high-quality AR-platform firearms. The company focuses on delivering budget-friendly yet feature-rich rifles, ensuring accessibility for both beginners and experienced shooters. The AR-15 RPR was developed as an upgraded model featuring an M-LOK handguard and enhanced ergonomics, making it more adaptable for modern tactical applications.

Design and Construction

The Radical Firearms AR-15 RPR closely follows the traditional AR-15 platform, with enhancements that improve modularity, handling, and reliability. Here are its key design elements:

Upper and Lower Receivers

• Constructed from forged 7075-T6 aluminum, ensuring strength and durability.
• Standard mil-spec dimensions, allowing compatibility with aftermarket AR-15 parts.
• Type III hard coat anodized finish for corrosion resistance and longevity.

Barrel

• 16-inch 5.56 NATO barrel capable of handling both .223 Remington and 5.56 NATO rounds.
• 1:7 twist rate, optimized for stabilizing a wide range of bullet weights.
• 4150 Chrome Moly Vanadium (CMV) steel construction, offering improved longevity and accuracy.
• Melonite finish, increasing corrosion resistance and reducing friction.
• Threaded muzzle (1/2×28), allowing the attachment of suppressors, flash hiders, or compensators.

Handguard

• Free-floating 15-inch M-LOK handguard, providing superior barrel harmonics for enhanced accuracy.
• Full-length Picatinny rail on top, allowing for various optics and iron sights.
• Lightweight aluminum construction, balancing durability with ease of handling.

Bolt Carrier Group (BCG)

• Full-auto rated, shot-peened, MPI (Magnetic Particle Inspected) bolt ensures reliability under heavy use.
• 9310 steel bolt, offering exceptional strength and resistance to wear.
• M16-profile carrier with a black nitride finish, reducing friction and easing cleaning.

Gas System

• Mid-length gas system, reducing recoil and improving cycling reliability.
• Low-profile gas block, maintaining a sleek, streamlined profile.

Trigger

• Standard mil-spec single-stage trigger, with an approximate 5.5-7 lb pull weight.
• Can be upgraded to aftermarket triggers for a more refined shooting experience.

Stock and Grip

• Six-position adjustable stock, allowing customization for different shooter sizes and applications.
• Standard A2-style grip, ergonomic but often upgraded by users for improved comfort and control.

Magazines and Capacity

• Typically ships with a 30-round magazine (state-compliant versions available).
• Compatible with all standard AR-15 magazines, including Magpul PMAGs and other aftermarket options.

Specifications

Performance and Shooting Experience

The Radical Firearms AR-15 RPR is known for its smooth shooting, accuracy, and reliability. Here’s how it performs in key areas:

Accuracy

• The 1:7 twist rate stabilizes heavier bullets (62-77 grain), making it a solid choice for longer-range shooting.
• The free-floating handguard reduces barrel deflection, improving accuracy.

Recoil and Handling

• The mid-length gas system reduces recoil compared to carbine-length systems.
• The adjustable stock and ergonomic grip enhance control and comfort.

Reliability

• The nitride-treated BCG and barrel improve resistance to wear and fouling.
• The mid-length gas system enhances smooth cycling and minimizes excessive wear.

Comparisons with Other AR-15 Rifles

The Radical Firearms AR-15 RPR is often compared to other popular entry-level AR-15 rifles:

Radical Firearms AR-15 RPR vs. Smith & Wesson M&P15 Sport II

• RPR offers a free-floating M-LOK handguard, while the M&P15 Sport II features a standard drop-in polymer handguard.
• The RPR has a mid-length gas system, offering smoother recoil than the M&P15’s carbine-length gas system.

Radical Firearms AR-15 RPR vs. PSA PA-15

• Both are budget-friendly AR-15s, but the RPR includes a factory-installed M-LOK handguard.
• PSA offers more build customization, while Radical Firearms provides a ready-to-use tactical setup.

Maintenance and Upkeep

Proper maintenance ensures the AR-15 RPR remains reliable:

1. Cleaning the Barrel – Use a 5.56 bore brush and solvent to prevent carbon buildup.
2. Lubricating the BCG – Apply CLP or gun oil to reduce friction.
3. Inspecting the Gas System – Ensure the gas block and tube are free of obstructions.
4. Checking the Trigger Group – Keep the fire control group clean for smooth operation.