The Excel Arms Accelerator MR-5.7 Rifle: A Deep Dive into the 5.7mm Platform

For discerning shooters seeking a unique blend of performance, reliability, and precision in a semi-automatic rifle, the Excel Arms Accelerator MR-5.7 Rifle (EA57101) stands out. This rifle is expertly engineered for those who appreciate advanced firearm design, particularly enthusiasts of the high-velocity 5.7x28mm cartridge. Whether you're a competitive shooter looking for an edge, a firearms collector expanding your niche, or someone seeking a dependable and accurate rifle for target practice and sporting applications, the MR-5.7 offers a compelling package. It addresses the common query for a semi-automatic rifle that delivers exceptional accuracy with minimal recoil, making it suitable for extended range sessions without fatigue.

Unveiling the 5.7x28mm Cartridge: Why It Matters

At the heart of the Excel Arms Accelerator MR-5.7's appeal is its chambering in the distinctive 5.7x28mm cartridge. This isn't your average pistol or rifle round; it was originally developed by FN Herstal for use in their P90 personal defense weapon and Five-seveN pistol. What makes the 5.7x28mm so unique, and why is it gaining popularity among civilian shooters?

• High Velocity, Low Recoil: The 5.7x28mm round is characterized by its small, lightweight bullet propelled at very high velocities (often exceeding 2,000 feet per second from a rifle-length barrel). This translates directly into incredibly flat trajectories and minimal felt recoil, making follow-up shots faster and more accurate. For shooters sensitive to recoil or those who simply desire a more comfortable shooting experience, this is a significant advantage.
• Accuracy Potential: The inherent design of the 5.7x28mm, combined with a well-built platform like the Accelerator MR-5.7, contributes to excellent inherent accuracy. Its flat-shooting nature means less bullet drop over distance, simplifying aiming for target shooters.
• Versatility: While often associated with personal defense, the 5.7x28mm is highly versatile. From plinking at the range to varmint hunting where legal, its high velocity and precise trajectory make it effective. It provides a unique intermediate option between traditional pistol calibers and larger rifle rounds, offering a distinct ballistic profile.
• Lightweight Ammunition: The smaller dimensions and lighter bullet weights of 5.7x28mm ammunition mean shooters can carry more rounds for the same weight compared to many other rifle calibers, an advantage for extended range trips or field use.

The Excel Arms Accelerator MR-5.7 capitalizes on these characteristics, providing a purpose-built rifle that maximizes the potential of this innovative cartridge. It's an answer to the question, "What rifle truly optimizes the 5.7x28mm experience?"

Core Design and Engineering: What Makes the MR-5.7 Stand Out?

The Excel Arms Accelerator MR-5.7 is more than just a rifle; it's a testament to robust American manufacturing and intelligent design. Every component is chosen for durability and performance, ensuring a reliable firearm experience.

Precision-Machined Stainless Steel Receiver

The black stainless steel receiver is a cornerstone of the MR-5.7's robust construction. Stainless steel is renowned for its exceptional corrosion resistance and durability, making the receiver highly resilient to wear and tear, even in adverse conditions. This material choice ensures a long service life and consistent performance over thousands of rounds. The precision machining of the receiver contributes significantly to the rifle's overall accuracy, providing a solid, stable platform for the barrel and action. This addresses a common concern among buyers: "How durable is this rifle, and will it hold up over time?" The answer lies in its superior material construction.

The 18-Inch Stainless Steel Barrel: Accuracy Defined

Equipped with an 18-inch stainless steel barrel, the Accelerator MR-5.7 achieves an optimal balance between maneuverability and ballistic performance. The 18-inch length allows the 5.7x28mm cartridge to reach its full velocity potential, maximizing its flat trajectory and energy downrange. Stainless steel barrels are favored in precision firearms for their excellent resistance to erosion from hot gases and friction, which directly translates to consistent accuracy and a longer barrel life. This feature is critical for anyone asking, "How accurate is the Accelerator MR-5.7, especially at longer distances?" The barrel plays a pivotal role in delivering that precision.

Fixed Synthetic Stock for Stability and Control

The rifle features a black fixed synthetic stock. Synthetic stocks are lauded for their lightweight nature, resistance to environmental factors (moisture, temperature fluctuations), and durability. A fixed stock offers a stable shooting platform, which is crucial for maximizing accuracy, especially from supported positions. The ergonomic design ensures comfortable handling and improved control during firing, making it easier to maintain a steady aim and manage the already low recoil. This design choice contributes to the overall shootability and user comfort, answering the question, "Is this rifle comfortable and stable to shoot?"

Reliable Semi-Automatic Action

As a semi-automatic rifle, the Excel Arms Accelerator MR-5.7 offers rapid follow-up shot capability without the need for manual cycling. This makes it highly effective for range shooting, where speed and sustained fire are often desired, and also for sporting uses where quick target engagement might be necessary. The semi-automatic mechanism is designed for reliable cycling of the 5.7x28mm cartridge, ensuring a smooth and consistent firing experience. Its proven action minimizes malfunctions, building confidence in every shot.

Ample Capacity: 9+1 Rounds

With a 9+1 round capacity, the MR-5.7 provides ample ammunition on board for most shooting scenarios. The ability to load nine rounds in the magazine plus one in the chamber is generous for a sporting rifle and reduces the frequency of reloads during range sessions, allowing for more uninterrupted shooting enjoyment. This capacity is practical for both recreational shooting and responsible sporting applications.

Who is the Excel Arms Accelerator MR-5.7 Rifle For?

This rifle is an excellent choice for a variety of shooters, addressing specific needs and preferences.

• 5.7x28mm Enthusiasts: If you already own firearms chambered in 5.7x28mm (like an FN Five-seveN pistol or a P90/PS90), the Accelerator MR-5.7 is a natural extension, allowing for ammunition commonality across your collection. It's the ideal rifle platform to truly explore the ballistic capabilities of this unique round.
• Target and Recreational Shooters: Its low recoil, high accuracy, and semi-automatic action make it incredibly enjoyable for extended sessions at the shooting range. New shooters will appreciate the ease of handling, while experienced shooters will value its precision.
• Sporting and Varmint Hunters (where legal): The flat trajectory and high velocity of the 5.7x28mm make it well-suited for small game and varmint control in areas where a rifle of this caliber is appropriate and legal. Its lightweight nature also aids in field portability.
• Firearms Collectors: The Accelerator MR-5.7 is a distinctive piece, representing an interesting chapter in firearm development with its dedication to the 5.7x28mm cartridge. Its unique design and specialized chambering make it a noteworthy addition to any collection.
• Those Seeking Low-Recoil Options: For individuals who find traditional rifle calibers uncomfortable due to recoil, or those with physical limitations, the MR-5.7 provides a powerful yet gentle shooting experience without sacrificing performance.

Enhancing Your Shooting Experience with the MR-5.7

Beyond its core features, the Excel Arms Accelerator MR-5.7 is designed to contribute to an overall superior shooting experience.

• Ease of Handling: The rifle's balanced design and the low-recoil nature of the 5.7x28mm round contribute to exceptional ease of handling. Shooters can maintain better control, leading to improved accuracy and confidence.
• Reliability in Diverse Conditions: Built with a black stainless steel receiver and a robust synthetic stock, the MR-5.7 is inherently resistant to common environmental challenges like moisture and temperature extremes. This makes it a dependable firearm for use in various outdoor settings.
• Low Maintenance Design: The materials chosen for the MR-5.7, particularly stainless steel, simplify cleaning and maintenance. Stainless steel resists rust and corrosion, meaning less intensive cleaning is required to keep the rifle in top condition, adding to its longevity and user convenience.
• A Unique Platform: In a market often saturated with traditional AR-style rifles, the Accelerator MR-5.7 offers a refreshing and distinct alternative. Its dedicated 5.7x28mm platform provides a unique shooting dynamic that sets it apart.

Investing in Quality: The Excel Arms Legacy

Excel Arms has built a reputation for producing high-quality, innovative firearms. The Accelerator MR-5.7 rifle continues this tradition, reflecting the company's commitment to precision manufacturing and user satisfaction. When you choose an Excel Arms product, you're investing in a firearm engineered for performance and built to last. This commitment to quality assures buyers they are acquiring a reliable tool that will perform consistently for years to come.

Where to Acquire Your Excel Arms Accelerator MR-5.7 Rifle

For those ready to experience the precision and unique performance of the Excel Arms Accelerator MR-5.7 Rifle, it is available through reputable retailers like DEGuns. DEGuns offers a comprehensive selection of firearms, ensuring you can find the specific model you're looking for, backed by knowledgeable customer service and a reliable purchasing process. Ensure you check local and state regulations regarding firearm ownership before purchasing.

Key Specifications: Excel Arms Accelerator MR-5.7 Rifle

Feature	Detail
Model	EA57101 Accelerator Basic MR-5.7
Action	Semi-Automatic
Caliber	5.7mmX28mm
Barrel Length	18 inches
Barrel Material	Stainless Steel (SS)
Capacity	9+1 Rounds
Stock	Black Fixed Synthetic
Receiver	Black Stainless Steel
UPC	752334005073