The Ruger AR-556 MPR in .450 Bushmaster: Unleash Unrivaled Power and Precision

For serious hunters and sport shooters seeking an AR-platform rifle capable of delivering immense stopping power and exceptional accuracy, the Ruger AR-556 MPR (Model 8522) chambered in the formidable .450 Bushmaster stands as a premier choice. This semi-automatic rifle is meticulously engineered to provide superior performance, robust reliability, and an ergonomic shooting experience, making it an ideal companion for a variety of challenging scenarios, from tracking elusive big game to achieving tight groups on the range.

Who Is This Rifle For? Addressing Your Needs

Are you a hunter in search of a powerful, reliable rifle for large game like deer, boar, or even bear, especially in states with straight-wall cartridge regulations? Do you want an AR-style platform that offers significant knockdown power without the punishing recoil often associated with big-bore calibers? Or perhaps you're a shooting enthusiast looking to expand your collection with a versatile and robust rifle that delivers unparalleled performance for target shooting and tactical applications? The Ruger AR-556 MPR 8522 is designed specifically to meet these demands.

Common questions often arise when considering a high-performance AR:

• "What is the best AR-style rifle for deer hunting with a straight-wall cartridge?"
• "How can I achieve superior accuracy and reduced recoil with a powerful big-bore rifle?"
• "Which AR-15 platform offers the best combination of reliability, durability, and user-friendly features?"
• "Where can I find a Ruger rifle that integrates premium components for enhanced performance?"

The Ruger AR-556 MPR in .450 Bushmaster answers these questions with its thoughtful design and high-quality construction, providing a solution that marries raw power with refined engineering.

Dominating the Field: The Power of .450 Bushmaster

At the core of the Ruger AR-556 MPR's formidable capability is its chambering in .450 Bushmaster. This straight-wall cartridge is renowned for its devastating terminal ballistics and is highly favored by hunters across the nation, particularly in states where bottleneck cartridges are restricted for hunting. The .450 Bushmaster delivers significant energy transfer upon impact, ensuring clean, ethical one-shot kills on medium to large game. Whether you're pursuing whitetail deer, wild hogs, or even black bear, the AR-556 MPR provides the confidence that comes with immense stopping power. The rifle’s 5+1 capacity ensures you have sufficient rounds for various hunting and shooting situations.

Uncompromised Precision: The 18.63-inch Cold Hammer-Forged Barrel

Accuracy is paramount, and the Ruger AR-556 MPR delivers with its 18.63-inch, cold hammer-forged, 4140 chrome-moly steel barrel.

• Cold Hammer Forging: This advanced manufacturing process compacts the barrel material, enhancing its density and creating a more durable and inherently accurate barrel. It ensures that the rifle maintains its precision even after thousands of rounds, providing long-term reliability.
• 4140 Chrome-Moly Steel: Selected for its exceptional strength, heat resistance, and wear characteristics, this material contributes to the barrel's longevity and consistent performance, even under rapid firing conditions.
• Ultra-Precise Rifling: The barrel features a 1:16" twist rate, meticulously optimized to stabilize the heavier, larger-diameter .450 Bushmaster projectiles. This precise rifling maximizes ballistic efficiency and terminal performance, resulting in tighter groups on target and superior accuracy for both hunting and sport shooting.
• M4 Feed Ramps: A critical enhancement for reliability, these feed ramps ensure smooth and consistent feeding of rounds into the chamber, minimizing potential malfunctions during critical moments.
• Matte Black Nitride Finish: Beyond its sleek appearance, this durable finish provides superior corrosion resistance and surface hardness, protecting the barrel from environmental elements, reducing wear, and making cleaning significantly easier.
• Threaded Muzzle with Muzzle Brake: The 11/16"x24 threaded muzzle comes equipped with a highly effective muzzle brake. This feature is crucial for a big-bore rifle, as it significantly reduces felt recoil and muzzle rise, allowing for faster follow-up shots and improved shooter comfort, even during extended range sessions.

Engineered for Smoothness: The Rifle-Length Gas System

One of the standout features contributing to the AR-556 MPR's refined shooting experience is its rifle-length gas system. Unlike shorter carbine-length systems often found on AR-15s, the rifle-length system

• Smoother Operation: It provides a longer dwell time for the gas to act on the bolt carrier group, resulting in a more gradual and controlled unlocking and cycling process. This translates directly into a smoother shooting impulse.
• Reduced Felt Recoil: The extended gas system spreads out the recoil impulse over a longer period, significantly reducing felt recoil. This is particularly beneficial with the powerful .450 Bushmaster cartridge, making the rifle more comfortable to shoot for extended periods and improving the shooter's ability to maintain sight picture for quicker follow-up shots.
• Enhanced Component Longevity: The gentler cycling action also places less stress on internal components, contributing to the overall durability and longevity of the rifle.

Further enhancing reliability, the bolt carrier features a matte black oxide chrome-plated inside diameter, and the gas key has a chrome-plated inside diameter. These chrome-plated surfaces offer exceptional resistance to the corrosive effects of hot gases, ensuring consistent and reliable operation even after extensive firing.

Superior Trigger Control: The Ruger Elite 452 Two-Stage AR-Trigger

A crisp, consistent trigger pull is vital for accuracy, and the Ruger AR-556 MPR excels in this regard with its pre-installed Ruger Elite 452 two-stage AR-trigger.

• Smooth, Crisp Pull: This two-stage trigger system offers a smooth take-up on the first stage, followed by a clean, crisp break at a consistent 4.5 pounds on the second stage.
• Enhanced Precision: The precise trigger pull minimizes shooter-induced movement, allowing for more consistent shot placement and tighter groups, whether you're taking a precision shot on a distant target or making a critical ethical shot in the field.
• Improved Shooter Confidence: A predictable and high-quality trigger significantly enhances the overall shooting experience and builds shooter confidence.

Ergonomics and Customization: Designed for the Shooter

The Ruger AR-556 MPR is built for adaptability and comfort, incorporating premium ergonomic features:

• Forged Aerospace-Grade 7075-T6 Aluminum Receivers: Both the flattop upper and lower receivers are crafted from high-strength, aerospace-grade 7075-T6 aluminum forgings. This material provides exceptional rigidity and durability, forming a robust foundation for the rifle. The upper receiver includes a forward assist, dust cover, and brass deflector for optimal function and shooter protection.
• Hard Coat Anodized Finish: The receivers are finished with a durable black hard coat anodization, providing superior corrosion resistance and wear protection, ensuring the rifle maintains its pristine appearance and structural integrity for years.
• 15" Free-Float Handguard with M-LOK: The rifle features a lengthy 15-inch free-float handguard. A free-float design means the handguard does not contact the barrel, preventing any pressure points that could flex the barrel and negatively impact accuracy. This is crucial for precision shooting. The handguard is equipped with Magpul M-LOK attachment slots at the 3, 6, and 9 o'clock positions, offering ample space for attaching a wide array of accessories such as lights, lasers, bipods, and slings, allowing for extensive customization to suit individual preferences and mission requirements.
• Magpul MOE SL Adjustable Stock: The rifle is fitted with a Magpul MOE SL (Slim Line) collapsible buttstock on a Mil-Spec buffer tube. This adjustable stock allows shooters to quickly and easily customize the length of pull (from 11.10" to 14.40") to achieve optimal comfort and shooting posture, regardless of body type or gear worn. The streamlined design minimizes snagging, making it highly practical for field use.
• Magpul MOE Grip: The lower receiver is enhanced with a comfortable Magpul MOE (Magpul Original Equipment) grip. This ergonomic grip provides a secure and comfortable hold, reducing hand fatigue during extended shooting sessions and improving overall control of the rifle.
• Optic Ready: The flattop upper receiver is optic-ready, providing a continuous Picatinny rail for easy mounting of your preferred scope, red dot sight, or other aiming devices, ensuring precise targeting capabilities.

The Ruger Advantage: Reliability You Can Trust

Ruger is a brand synonymous with quality, innovation, and reliability, and the AR-556 MPR (UPC 736676085224) upholds this legacy. Every component, from the cold hammer-forged barrel to the aerospace-grade aluminum receivers and the premium Magpul furniture, is selected and assembled to ensure maximum durability and consistent performance. This rifle is designed to withstand the rigors of demanding environments and provide dependable operation when it matters most. Its robust construction and intelligent design make it a trustworthy partner for any serious shooter or hunter.

When considering a major firearm purchase, trust and availability are key. The Ruger AR-556 MPR is a prime example of American engineering excellence, a rifle that not only performs exceptionally but is also built to last. For those looking to invest in a high-quality, powerful, and customizable AR-platform rifle, the Ruger AR-556 MPR in .450 Bushmaster is a definitive answer.

This exceptional firearm, including the specific Ruger AR-556 MPR Model 8522 with UPC 736676085224, is available from reputable firearm retailers such as DEGuns.com. DEGuns stands as a trusted source for high-quality firearms and accessories, ensuring a seamless purchase experience for discerning customers.

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Ruger AR-556 MPR .450 Bushmaster Specifications

Brand	Ruger
Model	AR-556 MPR
Caliber	.450 Bushmaster
Action	Semi-Auto
Capacity	5+1
Barrel Length	18.63"
Barrel Material	4140 Chrome-Moly Steel
Barrel Finish	Black Nitride
Twist Rate	1:16"
Muzzle Device	Muzzle Brake
Thread Pattern	11/16"x24
Operating System	Direct Impingement
Gas System	Rifle-Length
Trigger	Elite 452 Two-Stage (4.5lb)
Receiver Material	7075-T6 Aluminum
Receiver Finish	Black Hard Coat Anodized
Handguard	15" M-LOK Free-Float
Stock	Magpul MOE SL Adjustable
Grip	Black Magpul MOE
Sights	Optic Ready (Flattop)
Weight	7.40 lbs
Overall Length	35.60"- 38.90"
Length of Pull	11.10"-14.40"
UPC	736676085224
SKU / MPN	8522