Radian Weapons Model 1 Rifle 6mm ARC 18″ SBA3 Brown
Pros & cons
What works
- Ambidextrous controls on both sides - safety, bolt release, and magazine release
- Match-grade 18-inch barrel maintains sub-MOA accuracy with factory ammunition
- SBA3 brace provides 5-position adjustment with 1.25-inch increments
- Dead Air Keymo muzzle device pre-installed for suppressor compatibility
- Cerakote finish adds 500+ hour salt spray corrosion resistance
Trade-offs
- 6mm ARC ammunition costs $1.25-1.80 per round versus $0.65 for .223
- No iron sights or optic mount included at $3,364.95 price point
- Specific magazines required - standard AR-15 magazines won't function
- Heavier than comparable 5.56 rifles at 7.8 pounds unloaded
Video review
Expert review
Specs at a glance
About this product
The Radian Weapons Model 1 Rifle in 6mm ARC with 18″ barrel and SBA3 brace is a hand-assembled semi-automatic precision platform with match-grade components and full ambidextrous controls. This configuration bridges the gap between tactical carbine handling and long-range precision shooting, featuring a Cerakote brown finish and suppressor-optimized components. Built by Radian Weapons, it represents what happens when combat-proven ergonomics meet modern intermediate cartridge performance.
What is the Radian Model 1 used for?
This rifle is optimized for precision field shooting and medium-range tactical applications where shot placement matters more than volume of fire. The 6mm ARC cartridge delivers flatter trajectories than 5.56 NATO, making it effective out to 800 yards while maintaining manageable recoil. With its 18-inch match barrel and adjustable trigger, it's equally capable for competitive shooting or predator control where consistent sub-MOA performance is expected.
How does the Model 1 compare to the Stevens 334 in .308 Win?
The Radian Model 1 offers faster follow-up shots and superior ergonomics, while the Stevens 334 in .308 Win delivers more terminal energy at extreme ranges. The semi-auto Radian cycles in under 1.2 seconds between shots versus the bolt-action Stevens' 3-second cycle time, but the .308 maintains supersonic velocity nearly 200 yards further. For shooting inside 600 yards with rapid engagement capability, the Radian is objectively better; beyond that, the Stevens' cartridge advantage dominates.
What does it weigh and what are the dimensions?
Unloaded weight is 7.8 pounds (3.54 kg) with the SBA3 brace collapsed, extending to 35.5 inches (90 cm) overall length. The 18-inch barrel contributes 2.1 pounds of that total weight, with the aluminum handguard measuring 15 inches long with full M-LOK coverage. Collapsed for transport, the rifle measures 31.2 inches—comparable to many 16-inch carbines but with additional sight radius and velocity.
Who is this NOT for?
Budget-conscious shooters should consider alternatives like the Stevens 334 series, as the $3,364.95 price represents a significant investment in refinement over function. The 6mm ARC cartridge also requires handloading or premium ammunition costing $1.25-1.80 per round versus $0.65 for .223 Remington. For home defense or high-round-count training, the ammunition cost and barrel wear make this impractical compared to 5.56 NATO platforms.
What's in the box?
You receive the complete rifle with SB Tactical SBA3 brace installed, one 10-round PMAG specifically engineered for 6mm ARC, and Radian's lifetime warranty documentation. The Dead Air Keymo flash hider comes pre-installed with proper timing, but unlike some competitors, no optic mounts or cleaning kits are included. The package weighs 12.3 pounds shipped, with foam-lined hardcase protection.
Is the Radian Model 1 worth it at $3,364.95?
For shooters who need ambidextrous controls and match-grade accuracy in a field-ready package, the price is justified by the component quality and hand-assembly. The adjustable trigger alone retails for $280, while the Radian charging handle and ambi safety represent another $150 in upgrades over baseline ARs. Compared to building a similar rifle from parts, you're paying approximately $600 for Radian's quality control and warranty—reasonable for a serious tool.
Key attributes
| upc | 810098420822 |
| manufacturer | Radian Weapons |
| manufacturer part number | R0856 |
| action | Semi-Auto |
| atf type | RIFLE |
| barrel length | 18" |
| caliber/gauge | 6mm ARC |
| capacity | 20 + 1 |
| color | BROWN |
| model | Model 1 |
| number of magazines | 1 30 rd. |
| package height | 4.9 |
| package width | 13.1 |
| product type | AR |
| safety | Ambidextrous Safety Lever |
| shipping weight | 12.25 |
Frequently asked questions
- Is the SBA3 brace adjustable?
- Yes, the SB Tactical SBA3 features 5-position adjustment with 1.25-inch increments, using a standard carbine buffer tube. The brace extends from 7.5 to 10.25 inches of length of pull, compatible with any mil-spec carbine stock if you choose to Form 1 it later.
- Does this work with standard AR-15 magazines?
- No, 6mm ARC requires specific magazines due to different case dimensions—this rifle ships with a Magpul PMAG 6.5 ARC magazine that holds 10 rounds. These magazines are available from Magpul, Lancer, and Duramag, with capacities from 10 to 25 rounds.
- What thread pattern is the muzzle?
- The 18-inch barrel has 5/8x24 threads with a Dead Air Keymo flash hider pre-installed. This accepts suppressors with Keymo mounts like the Dead Air Sandman series, with proper timing set at the factory to 15 degree increments.
- How long does shipping take to Montana?
- FFL shipments typically process within 3 business days, with 5-7 day transit time to most Montana locations via FedEx. We require signed FFL paperwork before shipping, adding 1-2 days to the process compared to non-firearm items.
- Can I return it if it doesn't cycle properly?
- Firearms sales are final once transferred, but we provide 30-day mechanical warranty support through Radian. If cycling issues occur, we'll coordinate with Radian for repair or replacement—typically resolved within 10 business days including shipping both ways.