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The Ruger SFAR AR-10 is a Lightweight Beast of a Rifle: .308 Power, AR-15 Weight

The Ruger Small Frame Autoloading Rifle (SFAR) has redefined what’s possible in the world of AR-10 rifles. Traditionally, AR-10s are powerful but bulky firearms chambered for larger cartridges like .308 Winchester. Ruger has cracked the code to create a rifle that combines the firepower of an AR-10 with the portability and weight of an AR-15. The result? A compact, lightweight powerhouse that doesn’t sacrifice performance.

A Revolutionary Design

A Revolutionary Design
Image Credit: Ruger Firearms

At first glance, the Ruger SFAR resembles an AR-15, but don’t be fooled – this is no ordinary rifle. Chambered in .308 Winchester, the SFAR manages to pack the punch of a larger AR-10 into a frame more comparable in size and weight to an AR-15. Weighing in at just 6.8 pounds for the carbine model with a 16.1-inch barrel, the SFAR is significantly lighter than traditional AR-10s, which often exceed 9 pounds. This engineering feat makes it one of the most portable .308 rifles on the market today.

Innovative Barrel and Gas System

Innovative Barrel and Gas System
Image Credit: Ruger Firearms

The SFAR boasts a cold-hammer-forged chrome-moly steel barrel, available in both 16.1-inch and 20-inch configurations. These barrels are black nitrided for corrosion resistance and long-term durability. Ruger has incorporated 5R rifling, a twist rate of 1:10, and threading for 5/8×24 muzzle devices, allowing customization with brakes or suppressors. The included Boomer muzzle brake effectively reduces recoil, ensuring that this lightweight rifle doesn’t kick like a mule.

An adjustable gas system sets the SFAR apart. With four positions, users can fine-tune the gas flow to accommodate different ammunition types or suppressor use. This feature enhances reliability and minimizes recoil, giving shooters precise control over their firearm’s performance. The simplicity of the system – adjustable with a standard hex wrench – adds to its practical appeal.

Precision Engineering Under the Hood

Precision Engineering Under the Hood
Image Credit: Ruger Firearms

The real magic of the SFAR lies in its internal design. Ruger’s engineers utilized modern high-strength steel alloys to reinforce critical components like the bolt and barrel extension. The bolt carrier group, machined from 8620 steel and chrome-lined for durability, includes reinforced lugs designed to handle the high pressures of the .308 cartridge. A dual-ejector system ensures reliable case ejection, even under the most demanding conditions.

The attention to detail doesn’t stop there. The firing pin, constructed from titanium and coated with Diamond-Like Carbon (DLC), is designed to withstand repeated use without compromising performance. These enhancements reflect Ruger’s commitment to creating a rifle that’s not only powerful but also dependable.

Familiar Ergonomics with Customizable Options

Familiar Ergonomics with Customizable Options
Image Credit: Ruger Firearms

Ruger designed the SFAR with AR-15 users in mind. The controls, including the safety selector, charging handle, and forward assist, are all standard AR-style, ensuring familiarity for seasoned shooters. The rifle also features a free-floating aluminum handguard with M-Lok compatibility, offering plenty of space for mounting accessories like optics, grips, or lights.

Out of the box, the SFAR comes equipped with a Magpul MOE SL stock and pistol grip, both of which are easily replaceable with other AR-compatible components. This modularity allows users to tailor the rifle to their specific needs, whether for hunting, tactical use, or target shooting.

An Exceptional Trigger

An Exceptional Trigger
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The SFAR’s Ruger Elite 452 two-stage trigger is a standout feature. With a crisp 3.3-pound pull, it surpasses the performance of many factory triggers, providing a smooth and predictable shooting experience. For those accustomed to subpar factory triggers, this is a pleasant surprise and elevates the overall quality of the rifle.

Performance in the Field

Performance in the Field
Image Credit: Ruger Firearms

Despite its lightweight design, the SFAR is a pleasure to shoot. The recoil, often a concern with .308 rifles, is surprisingly manageable. The combination of the Boomer muzzle brake and adjustable gas system ensures that even rapid fire remains controlled. Whether you’re engaging targets at close range or stretching the rifle’s legs with a variable-power optic, the SFAR proves to be both versatile and accurate.

During testing, the SFAR demonstrated consistent reliability across various ammunition types. The rifle’s ability to cycle smoothly even at the most restrictive gas settings highlights the effectiveness of Ruger’s design. It’s a rifle built to perform under diverse conditions, whether on the range or in the field.

A Perfect Fit for Hunters

A Perfect Fit for Hunters
Image Credit: Ruger Firearms

One of the SFAR’s most appealing aspects is its potential as a hunting rifle. The .308 Winchester cartridge is a proven performer for medium to large game, and the SFAR’s lightweight design makes it ideal for trekking through dense woods or open plains. Traditional AR-10s often become cumbersome when outfitted with scopes, bipods, and other accessories, but the SFAR’s portability ensures it remains maneuverable even when fully loaded.

Built for Versatility

Built for Versatility
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The SFAR is equally at home in tactical scenarios. Its compact frame and intuitive controls make it a strong contender for law enforcement or personal defense applications. The rifle’s ability to switch seamlessly between suppressed and unsuppressed firing modes adds to its versatility, making it a viable option for those who require adaptability in their firearms.

A Platform with Potential

A Platform with Potential
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The introduction of the SFAR raises intriguing possibilities for future chamberings. While the .308 Winchester is a fantastic all-around cartridge, calibers like the 6.5 Creedmoor or .243 Winchester could further expand the rifle’s appeal. Ruger’s innovative approach with the SFAR suggests that the platform has significant room to grow, and many enthusiasts are eagerly anticipating what’s next.

Affordability and Value

Affordability and Value
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At a price point of around $1,229, the SFAR offers excellent value for a rifle that bridges the gap between AR-15s and AR-10s. Considering its advanced features, reliable performance, and versatile design, it’s a cost-effective solution for those seeking .308 power in a lightweight package.

The Bottom Line

The Bottom Line
Image Credit: Ruger Firearms

The Ruger SFAR represents a significant leap forward in AR-10 design. By combining the power of a .308 Winchester with the portability of an AR-15, Ruger has created a firearm that appeals to hunters, tactical operators, and recreational shooters alike. Its innovative engineering, customizable features, and reliable performance make it a standout in a crowded market.

Whether you’re tracking game, defending your property, or simply enjoying a day at the range, the Ruger SFAR is a rifle that delivers on all fronts. With its combination of power, precision, and portability, this lightweight beast proves that you really can have it all.