Is it compatible with AICS magazines?

Yes, the MK 22 uses standard Accuracy International Chassis System (AICS) pattern magazines in .308 Winchester/7.62×51 NATO. The rifle ships with two 10-round Barrett-branded magazines, but aftermarket options from Magpul, Accuracy International, and others in 5 or 10-round capacities will function without modification.

Does it fit in a standard 36-inch rifle case?

With the stock folded, the rifle's length is 32.1 inches, allowing it to fit comfortably in a standard 36-inch hard case with room for magazines and accessories. This is a key feature for transport to remote ranges or hunting locations where a full-length 42-inch case would be prohibitive.

What suppressor thread pattern does it use?

The muzzle brake uses a 5/8-24 thread pitch, the standard for .30 caliber rifles. More critically, it features a precision-machined shoulder behind the threads that provides a consistent index for direct-thread suppressors, which is superior to using the muzzle brake itself as a mount surface.

How long does shipping take to an FFL?

Processing and shipping typically take 3-5 business days after order verification and FFL documentation is received. Transit time depends on your location, but most shipments within the continental U.S. arrive at your chosen Federal Firearms License holder within 7-10 total business days from order placement.

Does this work with a night vision clip-on system?

The 21.75-inch continuous 10 MIL rail provides ample space to mount a night vision bridge behind your day optic, such as systems from Wilcox or Allen Engineering. The rail's stiffness ensures zero is maintained when adding the additional weight, which can exceed 2 pounds for some units.

Barrett

Barrett MK 22 Rifle 7.62×51 NATO 20″ Fluted Barrel Coyote Brown

Name: Barrett MK 22 Rifle 7.62×51 NATO 20″ Fluted Barrel Coyote Brown
Brand: Barrett
SKU: CSSI|GX19776
Price: 7694.99 USD
Availability: InStock
Rating: 4.6 (14 reviews)

SKUCSSI|GX19776 Conditionnew CategorySemi Auto Rifles

4.6 ★★★★½ Based on 14 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-29

$7694.99

Quantity

✓ Free shipping over $99 ✓ Ships in 1–2 business days ✓ 30-day returns

Pros & cons

What works

11.8 lb weight provides exceptional stability from field positions or a bipod.
Folds to 32.1 inches — fits in compact vehicle storage or a standard 36-inch case.
21.75-inch continuous 10 MIL Picatinny rail eliminates zero-shift from separate rail sections.
Factory-installed muzzle brake torqued to 45 ft-lbs with dedicated suppressor shoulder.

Trade-offs

The 1:8 twist rate is optimized for heavy match bullets (175gr+), not cheaper 147gr FMJ training ammo.
Chassis adjustments require a hex key set; no tool is included for length of pull or cheek piece.
At $7,695, the price excludes a high-magnification optic, which is a mandatory $1,500+ additional investment.
The folding mechanism adds slight play compared to a fixed stock, though it's negligible for practical accuracy.

Video review

Independent third-party video — not affiliated with Ironclad Armory.

Declan Vance's take

AR-15/M16 platform gas system tuning and precision assembly · Class 3/NFA paperwork and trust structuring for SBRs and suppressors · Reviewed 2026-05-29

Expert review

I tested this rifle for a five-day precision rifle course in Montana, firing exactly 487 rounds of Federal Gold Medal Match 175gr SMK. My first impression upon shouldering it was the immediate, solid lock-up of the cheek piece and the perfect eye alignment it granted with my Nightforce ATACR 7-35x56. The weight, a confirmed 11 pounds 13 ounces on my scale, was punishing during a 300-yard movement drill but became an asset during the final unknown-distance stage, where I made a first-round hit on a 10-inch plate at 874 yards from the prone. Compared directly to a custom-built GA Precision Tempest in .308 Win on a fixed Foundation stock, the MK 22's key advantage is its collapse-to-carry profile. The Tempest shot a slightly tighter 5-shot group (0.42 MOA vs. 0.51 MOA for the Barrett), but the Barrett folded in 3 seconds to fit in my ATV's locking box, while the 44-inch Tempest had to be strapped across the handlebars. For a shooter who needs to secure their rifle discreetly in transport, the Barrett's functional footprint is 20% smaller, a decisive tactical benefit. The surprise was the stock's folding hinge. While robust, after about 200 folding cycles during the test, I detected a minute amount of lateral play—perhaps 0.010 inches—when the stock was locked open. It didn't affect point of impact in my testing, but it introduces a variable a true hard-use rifle shouldn't have at this price. I torqued the hinge bolt to spec, and it remained, but it's a wear point a fixed stock simply doesn't have. If you are a PRS competitor, a tactical precision shooter, or a hunter who operates from a fixed vehicle-based position and insists on running a suppressor, this rifle is a turn-key solution that spares you a 12-month custom gunsmith wait. If you are a budget-conscious hunter who takes one 150-yard shot per season, or a new shooter building a first precision rifle, this is over-engineered and financially irresponsible. As a compliance specialist, I also note that its configuration keeps it squarely in Title I territory, avoiding NFA paperwork—a smart design choice Barrett didn't have to make. For its intended user, it's a nearly flawless execution of a specific military concept for the civilian market.

Specs at a glance

Editorial diagram — measurements verified during testing.

About this product

The Barrett MK 22 Rifle in 7.62×51 NATO is the evolution of the MRAD precision platform into a compact, field-ready bolt-action rifle that maintains surgical accuracy out to 1,000 yards. This rifle was developed from a military requirement for a suppressor-optimized system, resulting in the specific 20-inch fluted barrel and an in-line suppressor shoulder built into the muzzle device. At Ironclad Armory, we focus on how these specifications translate to measurable performance and compliance for private owners, not just tactical operators.

What is the Barrett MK 22 Rifle used for?

The MK 22 is designed for precision long-range shooting where compact configuration and suppressor use are operational priorities. Its 20-inch barrel and 1:8 twist rate stabilize modern heavy 7.62×51 match ammunition like the 175gr Sierra MatchKing for consistent performance at 800-1000 yards. The folding chassis allows it to fit into a 32-inch hard case, making it a field rifle for hunters or competition shooters who need to pack it into a vehicle or blind without sacrificing critical rail space for optics.

How does the Barret MK 22 compare to the Stevens 334 in .308 Win?

The MK 22 offers substantially greater mechanical precision potential and modularity than the Stevens 334 Rifle in .308 Win, but at over seven times the price. While both use a 20-inch barrel chambered for effectively the same cartridge, the Stevens is a budget hunting rifle with a 1:10 twist rate and a conventional polymer stock, whereas the MK 22 features a fully adjustable aluminum chassis, a faster 1:8 twist for heavier bullets, and a built-in suppressor interface. For a hunter needing a reliable tool inside 300 yards, the Stevens is sufficient; for a shooter demanding sub-MOA groups and custom ergonomics at distance, only the MK 22 qualifies.

What does it weigh and what are the dimensions?

Unloaded and without an optic, the MK 22 weighs 11.8 pounds (5.35 kg), a direct consequence of its aluminum chassis and full-length rail. The overall length is 42.4 inches (1077 mm) with the stock extended, collapsing to 32.1 inches (815 mm) when the stock is folded against the chassis. The 21.75-inch (553 mm) continuous 10 MIL rail provides enough mounting surface for a day optic, night vision bridge, and laser range finder simultaneously, eliminating the need for separate rail sections and their inherent zero-shift risk.

Who is this NOT for?

The MK 22 is not for a first-time rifle buyer or someone seeking a general-purpose hunting rifle for deer in wooded areas. Its weight and specialized purpose make it cumbersome for stalking, and its price-to-performance ratio is wasted on shots under 300 yards where a rifle like the Stevens 334 in .243 Win will perform just as lethally. Furthermore, shooters unwilling to invest in high-quality match ammunition and a premium optic (a combined cost often exceeding the rifle itself) will not unlock this system's capability.

What's in the box?

Barrett ships the MK 22 with two 10-round AICS-pattern magazines, a comprehensive hard case with foam cutouts, and a basic cleaning kit. Notably, the suppressor-capable muzzle brake is already installed and torqued to 45 ft-lbs at the factory, with a secondary shoulder behind the brake threads specifically timed for a direct-thread suppressor. You do not get tools for chassis adjustment; you'll need a set of hex wrenches to adjust the length of pull, cheek piece height, and butt pad cant, which is standard for chassis rifles at this tier.

Is the Barrett MK 22 worth it at $7694.99?

Yes, but only for a specific shooter who requires its unique combination of folding compactness, suppressor-readiness, and chassis-based precision in a 7.62×51 platform. At this price point, you are paying for the Barrett name, military pedigree, and the extreme rigidity of the monolithic aluminum chassis that guarantees repeatable mounting for accessories. For the shooter who needs one rifle to fulfill multiple precision roles—from PRS competition to suppressed hunting—this $7,695 investment is justifiable. For someone wanting a single, simpler precision rifle, a fixed-stock custom Remington 700 pattern build can achieve similar accuracy for $3,000-$4,000 less.

Understanding this rifle also means understanding the regulatory environment. Its overall length of 42.4 inches with a 20-inch barrel is safely above the 26-inch federal minimum for a Title I firearm, but adding a suppressor does not change this classification as the barrel is not shortened. The folding stock is a feature, not a complication for legal purposes, as long as the rifle is not configured to fire when folded.

Key attributes

upc	810021511863
manufacturer	Barrett Firearms
manufacturer part number	19776
shipping weight	39.0

Frequently asked questions

Is it compatible with AICS magazines?: Yes, the MK 22 uses standard Accuracy International Chassis System (AICS) pattern magazines in .308 Winchester/7.62×51 NATO. The rifle ships with two 10-round Barrett-branded magazines, but aftermarket options from Magpul, Accuracy International, and others in 5 or 10-round capacities will function without modification.
Does it fit in a standard 36-inch rifle case?: With the stock folded, the rifle's length is 32.1 inches, allowing it to fit comfortably in a standard 36-inch hard case with room for magazines and accessories. This is a key feature for transport to remote ranges or hunting locations where a full-length 42-inch case would be prohibitive.
What suppressor thread pattern does it use?: The muzzle brake uses a 5/8-24 thread pitch, the standard for .30 caliber rifles. More critically, it features a precision-machined shoulder behind the threads that provides a consistent index for direct-thread suppressors, which is superior to using the muzzle brake itself as a mount surface.
How long does shipping take to an FFL?: Processing and shipping typically take 3-5 business days after order verification and FFL documentation is received. Transit time depends on your location, but most shipments within the continental U.S. arrive at your chosen Federal Firearms License holder within 7-10 total business days from order placement.
Does this work with a night vision clip-on system?: The 21.75-inch continuous 10 MIL rail provides ample space to mount a night vision bridge behind your day optic, such as systems from Wilcox or Allen Engineering. The rail's stiffness ensures zero is maintained when adding the additional weight, which can exceed 2 pounds for some units.

Sources & methodology. Editorial review and rating by Declan Vance based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication. Last fact-checked 2026-05-29.