Building the Ultimate 6ARC Precision Rifle

The 6ARC Platform: Precision Meets Versatility

For shooters who demand both precision and power, the 6mm Advanced Rifle Cartridge (6ARC) offers an exceptional balance of long-range accuracy and efficient ballistics. This custom build integrates the highest-quality components to create a battle-ready, competition-worthy rifle that is both lightweight and incredibly precise.

With parts sourced from Centurion Arms, Proof Research, Geissele, Steiner Optics, and WOOX, this rifle is engineered to dominate in the field or on the range. Let’s break down the key components that make this build an absolute powerhouse.

Centurion Arms CM4 Upper & Lower: The Foundation

At the heart of this 6ARC build lies the Centurion Arms CM4 upper and lower receiver set. Machined from 7075-T6 aluminum, this set provides the strength and rigidity needed for high-performance shooting. The tight tolerances and exceptional craftsmanship of Centurion Arms ensure a rock-solid platform, minimizing movement between the upper and lower for enhanced accuracy.

The CM4’s full-length Picatinny rail allows for seamless optic mounting, while the flared mag well facilitates fast, smooth magazine changes. The result? A durable, battle-tested foundation that complements the precision-focused 6ARC caliber.

Strike Industries Trigger Guard: Small But Mighty

An often-overlooked component, the Strike Industries trigger guard offers an enhanced grip and more room for gloved operation. This upgrade is essential for shooters who operate in cold weather or tactical conditions, ensuring a seamless trigger pull in all environments.

Rise Armament Iconic 2-Stage Trigger: Precision Meets Speed

A clean, crisp trigger pull is the foundation of precision shooting, and the Rise Armament Iconic 2-Stage trigger delivers exactly that. With a light first stage (0.75 lbs) and a sharp break (2.5 lbs), this trigger is ideal for long-range shooting and rapid follow-up shots.

Thanks to its anti-walk pins and self-contained drop-in design, installation is simple, ensuring consistent, repeatable performance with every shot.

FailZero Bolt: Unmatched Durability

Reliability is non-negotiable, and the FailZero 6ARC bolt carrier group delivers next-level durability and smooth cycling. Featuring Nickel Boron (NiB) coating, this bolt reduces friction, enhances wear resistance, and requires minimal lubrication.

Whether in high-heat, high-pressure environments or extended shooting sessions, the FailZero bolt keeps the rifle running smoothly, minimizing carbon buildup and increasing service life.

Proof Research Barrel: The Heart of Accuracy

A precision rifle is only as accurate as its barrel, and Proof Research’s 6ARC carbon fiber barrel is a game-changer. Featuring match-grade rifling and a lightweight carbon wrap, this barrel provides extreme accuracy while reducing weight compared to traditional steel barrels.

With a 1:7.5 twist rate, it stabilizes a wide range of bullet weights, ensuring tight shot groups at long distances. Whether for competition, hunting, or tactical applications, this barrel offers elite-level precision.

Steiner T6Xi 3-18x56 Optic: See Further, Shoot Further

A precision rifle deserves an optic to match, and the Steiner T6Xi 3-18x56 delivers crystal-clear glass, precise adjustments, and a first focal plane (FFP) reticle for unparalleled accuracy.

With its 56mm objective lens, the T6Xi provides superior light transmission and edge-to-edge clarity, making it ideal for low-light environments. The illuminated reticle and side parallax adjustment ensure rapid target acquisition and pinpoint accuracy at any range.

WOOX Furniture: Ultimate Comfort & Stability

No high-end build is complete without a premium stock and grip, and WOOX delivers unmatched craftsmanship and ergonomics. Combining Italian-designed American walnut with aerospace-grade aluminum, WOOX stocks provide an elegant yet functional upgrade that enhances recoil control and shooting stability.

For this build, the WOOX Exactus precision stock offers an adjustable cheek rest and length of pull, ensuring a customized fit for maximum comfort and accuracy.

Explore WOOX furniture for your build

SpecterScat Noah Can: Suppression Done Right

Keeping shots quiet and reducing recoil is key for tactical and hunting applications, and the SpecterScat Noah suppressor delivers on both fronts. Designed with a multi-baffle system, it offers impressive sound suppression without compromising accuracy.

Paired with the ScopeChaps suppressor bra, this setup protects the can from environmental wear and tear, ensuring long-lasting performance.

Geissele Clutch 6ARC Magazines: Feeding Reliability

A precision rifle is only as reliable as its feeding system, and the Geissele Clutch 6ARC magazines guarantee smooth, consistent feeding. Optimized for the unique case shape of 6ARC, these mags eliminate feeding issues common in lesser-quality alternatives.

With a durable aluminum construction and anti-tilt follower, these mags ensure flawless cycling under any condition.

Bringing It All Together

This 6ARC precision build is a testament to the power of carefully selected, high-quality components. From the Centurion Arms receivers to the Proof Research barrel, every part has been meticulously chosen to enhance accuracy, reliability, and shooting experience.

Whether for long-range competition, tactical deployment, or hunting, this rifle stands as a benchmark in the world of precision AR builds. If you're looking to create your own ultimate 6ARC platform, consider these upgrades and build your perfect precision machine.