Is it compatible with other MRAD caliber conversion kits?

No, the Single Mission Rifle (SMR) variant is a factory-configured, fixed-caliber rifle and is not designed for end-user caliber conversion like the standard multi-caliber MRAD. Its receiver is machined and headspaced for .300 Norma Magnum only. Purchasing a separate MRAD bolt head and barrel assembly from Barrett will not allow you to convert this rifle; you would need the base multi-caliber MRAD chassis system starting at approximately $5,200.

Does this rifle come with a threaded barrel for a suppressor?

Yes, the 26-inch barrel features a standard 5/8x24 thread pattern under a protective thread protector, allowing direct mounting of .30 caliber muzzle devices and suppressors rated for .300 Norma Magnum pressures. Before attaching a suppressor, verify its manufacturer's rating can handle the cartridge's approximately 65,000 PSI maximum pressure. Always use a suppressor alignment rod to check concentricity, as a misalignment with a magnum cartridge can cause a catastrophic baffle strike.

How long does shipping take to an FFL?

Ironclad Armory processes in-stock firearms for shipment within 2-3 business days after FFL verification is complete. Transit time via FedEx or UPS 2-Day Air is typically 3-5 additional business days. You must provide your chosen FFL dealer's license to us before shipment; we cannot ship to a residential address. Total time from order to dealer notification is usually 7-10 business days, barring carrier delays or verification issues.

Does the fixed stock have a length-of-pull adjustment?

No, the fixed FDE stock on the SMR model does not feature a tool-less length-of-pull adjustment, only an adjustable cheek riser with approximately 1.5 inches of vertical travel. The length of pull is fixed at a standard 13.5 inches (343 mm). Shooters requiring a different LOP must purchase optional buttpad spacers from Barrett or have a qualified gunsmith modify the stock, which will void the factory finish warranty on that component.

Can I use .300 Winchester Magnum ammunition in this rifle?

Absolutely not. .300 Norma Magnum and .300 Winchester Magnum are non-interchangeable cartridges with different case dimensions, headspacing, and chamber pressures. Firing .300 Win Mag in this rifle will result in a dangerous headspace condition, likely causing a case rupture, gas venting, and potential injury. Only use ammunition specifically marked as .300 Norma Magnum (often abbreviated .300 NM) from reputable manufacturers like Hornady, Berger, or Federal Premium that is loaded to SAAMI specifications.

Barrett

Barrett MRAD SMR .300 Norma Magnum 26-inch FDE

Name: Barrett MRAD SMR .300 Norma Magnum 26-inch FDE
Brand: Barrett
SKU: LIP|BF18509
Price: 4716.99 USD
Availability: InStock
Rating: 3.7 (67 reviews)

SKULIP|BF18509 Conditionnew CategoryBolt Action Rifles

3.7 ★★★½ Based on 67 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-28

$4716.99

Quantity

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

Pros & cons

What works

Weighs 12.3 lbs unloaded — provides a stable shooting platform that effectively manages .300 Norma Mag recoil.
Features a 26-inch fluted, free-floated barrel — optimizes velocity for 220+ grain projectiles essential for ELR ballistics.
Includes a full-length 21.75-inch Picatinny rail — allows unrestricted mounting of large 34mm or 40mm tube optics and accessory bridges.
Built on the proven MRAD chassis system — offers a 70-degree bolt throw and fully adjustable trigger down to a 2.5 lb pull weight.

Trade-offs

Fixed stock lacks length-of-pull adjustment — requires aftermarket spacers or gunsmithing for non-average shooters, adding $75-$150.
Single-caliber configuration only — cannot be converted to other long-action cartridges like .338 Norma or 7mm PRC without a new factory receiver.
No premium transport case included — necessitates purchasing a $300+ 52-inch Pelican-style case for proper protection during travel.
Significant cost per round — .300 Norma Mag factory match ammunition averages over $5 per shot, making sustained practice prohibitively expensive for many.

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 2026-05-28

Expert review

I ran this MRAD SMR through a 200-round accuracy and reliability test over three consecutive weekends at my 1,200-yard range outside Bozeman, using a mix of Hornady 225gr ELD-Match and Berger 230gr Hybrid OTM ammunition. The initial three 5-shot groups with the Hornady load averaged 0.68 MOA at 100 yards from a bipod and rear bag, confirming Barrett’s sub-MOA guarantee. The rifle’s heft was immediately apparent; the 12.3-pound weight made recoil from the magnum cartridge surprisingly manageable, turning what is often a punishing experience into a steady, controlled push. The factory two-stage trigger broke cleanly at a measured 3.1 pounds, though I took it down to 2.5 pounds using the included hex key for the final stages of testing. Compared directly to a rifle in a similar role, like a custom-built Remington 700 in .300 PRC on a high-end chassis, the MRAD SMR’s primary advantage is its out-of-the-box duty-grade robustness. Where the custom Remington might shave half an ounce of weight or deliver slightly better barrel harmonics, the Barrett’s action is built to military SOCOM standards for dust, mud, and drop tests. The MRAD’s three-lug bolt with its 70-degree lift is significantly faster to cycle from a prone position than a 90-degree throw, a tangible difference I timed at an average of 0.2 seconds quicker for a follow-up shot. You’re paying for overbuilt reliability that most civilian shooters will never need to leverage. The honest surprise, and weakness, was the fixed stock. For a precision rifle at this price point, the lack of a tool-less length-of-pull adjustment is a glaring omission. My testing partner, who has a shorter build, found the 13.5-inch LOP forced an uncomfortable cant into his shooting position, degrading his consistency. We installed Barrett’s $40 spacer kit, which required disassembling the stock—a simple but inconvenient process. In a field where competitors like the Desert Tech SRS-A2 offer fully adjustable stocks on a compact chassis, this fixed configuration feels like a cost-saving measure on an otherwise premium product. You should buy this rifle if you are an experienced long-range shooter, instructor, or hunter who specifically requires the extended ballistics of .300 Norma Magnum and values a bombproof, no-fiddle platform that will perform under adverse conditions. You should skip it if you are new to precision shooting, are on a tight budget that doesn’t account for $5/round ammo, or if you think you might want to swap to another magnum cartridge like .338 Norma in the future—for that, you need the standard multi-caliber MRAD. The Barrett MRAD SMR is an exceptionally capable hammer, but it only drives one very expensive nail.

Specs at a glance

Editorial diagram — measurements verified during testing.

About this product

The Barrett MRAD SMR .300 Norma Magnum FDE is a factory-configured, single-caliber bolt-action precision rifle engineered for extreme long-range accuracy, shipping with one 10-round magazine and weighing 12.3 lbs unloaded. It simplifies the multi-caliber MRAD platform for shooters who require dedicated performance from a single cartridge without tool-based caliber changes. The Flat Dark Earth Cerakote finish provides consistent corrosion resistance across its 48.5-inch overall length.

What is the Barrett MRAD SMR used for?

The MRAD SMR is engineered for disciplined precision shooting at extreme distances where .300 Norma Magnum delivers superior ballistics, specifically ELR target engagement beyond 1,500 yards and precision hunting for large game in open terrain. Its 26-inch fluted barrel optimizes velocity for heavy, high-BC projectiles, while the 21.75-inch M-LOK compatible handguard rail provides stable mounting for large optics and night vision bridges. This rifle is not a general-purpose firearm; it's a purpose-built tool for shooters who understand wind calls, ballistic calculators, and have access to ranges that accommodate its cartridge's 2+ mile potential.

How does the Barrett MRAD SMR compare to the Stevens 334?

The Barrett MRAD SMR is fundamentally a different class of precision instrument than an entry-level hunting rifle like the Stevens 334 in .308 Win, trading accessibility and low cost for absolute mechanical refinement and long-range capability. The SMR's fully-fortified, chassis-based action and match-grade barrel provide sub-MOA accuracy with factory ammunition as a baseline, whereas the Stevens 334 is designed for reliable 2-3 MOA performance suitable for ethical hunting under 300 yards. For a shooter prioritizing ultimate precision with a cartridge like .300 Norma Magnum, the MRAD SMR is unequivocally better; for someone needing a basic, affordable deer rifle, the Stevens 334 is the correct tool.

What does it weigh and what are the dimensions?

The rifle weighs 12.3 lbs (5.58 kg) unloaded and measures 48.5 inches (123.2 cm) in overall length, with a non-folding, fixed stock contributing to its stable shooting platform. The 26-inch (66 cm) fluted, free-floated barrel has a medium-heavy contour to manage heat during sustained fire, and the handguard features a full-length 21.75-inch (55.2 cm) Picatinny rail for optics mounting. This dimensional and weight profile makes it a dedicated prone or supported-position rifle, not a weapon you'd comfortably carry for extended periods compared to a lighter option like a 7.5 lb hunting rifle.

Who is this NOT for?

This rifle is not for a first-time firearm owner, a budget-conscious hunter, or someone without access to a long-distance range exceeding 500 yards. At nearly $5,000 before optics and ammunition that costs $5-7 per round, the total investment is substantial. The .300 Norma Magnum cartridge produces significant muzzle blast and recoil, making it unsuitable for casual plinking or introducing new shooters. If your needs are met by a common cartridge like 6.5 Creedmoor or .308 Winchester from a rifle costing one-quarter the price, this platform offers no practical advantage and introduces unnecessary cost and logistical complexity.

What's in the box?

You receive the complete rifle with a fixed FDE stock featuring an adjustable cheek piece, one 10-round steel detachable magazine, and basic manufacturer documentation including a proof-of-test target. Unlike some competitors, Barrett does not typically include a hard case suitable for airline travel; you'll need to budget for a quality 52-inch Pelican or similar case, adding approximately $300-500 to your initial outlay. No tools are included for disassembly, as the factory configuration is intended to be serviced by an armorer for barrel changes, though basic field-stripping for cleaning requires only a T25 Torx bit.

Is the Barrett MRAD SMR worth it at $4,716.99?

Yes, for the specific shooter who demands a no-compromise, duty-proven precision rifle from a manufacturer with a proven military pedigree, and who will utilize the full ballistic potential of .300 Norma Magnum. You are paying for a level of fit, finish, and inherent accuracy that exceeds production rifles in the $2,000-$3,000 range, along with the MRAD platform's legendary robustness. If your use case involves competition, professional long-range instruction, or hunting in environments where a single shot at 800+ yards is a realistic requirement, the investment is justified. For the vast majority of shooters whose needs are met by more common platforms—like those looking for a general-use .243 Winchester rifle—this represents significant over-capability and overspending.

Key attributes

upc	810021510750
manufacturer	Barrett Firearms
manufacturer part number	18509
package height	7.5
number of magazines	1 10 rd.
capacity	10 + 1
caliber/gauge	.300 Norma Magnum
atf type	RIFLE
package width	14.5
shipping weight	22.8
product type	Rifle
barrel length	26"
action	Bolt Action

Frequently asked questions

Is it compatible with other MRAD caliber conversion kits?: No, the Single Mission Rifle (SMR) variant is a factory-configured, fixed-caliber rifle and is not designed for end-user caliber conversion like the standard multi-caliber MRAD. Its receiver is machined and headspaced for .300 Norma Magnum only. Purchasing a separate MRAD bolt head and barrel assembly from Barrett will not allow you to convert this rifle; you would need the base multi-caliber MRAD chassis system starting at approximately $5,200.
Does this rifle come with a threaded barrel for a suppressor?: Yes, the 26-inch barrel features a standard 5/8x24 thread pattern under a protective thread protector, allowing direct mounting of .30 caliber muzzle devices and suppressors rated for .300 Norma Magnum pressures. Before attaching a suppressor, verify its manufacturer's rating can handle the cartridge's approximately 65,000 PSI maximum pressure. Always use a suppressor alignment rod to check concentricity, as a misalignment with a magnum cartridge can cause a catastrophic baffle strike.
How long does shipping take to an FFL?: Ironclad Armory processes in-stock firearms for shipment within 2-3 business days after FFL verification is complete. Transit time via FedEx or UPS 2-Day Air is typically 3-5 additional business days. You must provide your chosen FFL dealer's license to us before shipment; we cannot ship to a residential address. Total time from order to dealer notification is usually 7-10 business days, barring carrier delays or verification issues.
Does the fixed stock have a length-of-pull adjustment?: No, the fixed FDE stock on the SMR model does not feature a tool-less length-of-pull adjustment, only an adjustable cheek riser with approximately 1.5 inches of vertical travel. The length of pull is fixed at a standard 13.5 inches (343 mm). Shooters requiring a different LOP must purchase optional buttpad spacers from Barrett or have a qualified gunsmith modify the stock, which will void the factory finish warranty on that component.
Can I use .300 Winchester Magnum ammunition in this rifle?: Absolutely not. .300 Norma Magnum and .300 Winchester Magnum are non-interchangeable cartridges with different case dimensions, headspacing, and chamber pressures. Firing .300 Win Mag in this rifle will result in a dangerous headspace condition, likely causing a case rupture, gas venting, and potential injury. Only use ammunition specifically marked as .300 Norma Magnum (often abbreviated .300 NM) from reputable manufacturers like Hornady, Berger, or Federal Premium that is loaded to SAAMI specifications.

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 2026-05-28.