The Radian Weapons Model 1 6mm ARC Rifle (Model R0851, UPC 810098420778) is a premium, fully ambidextrous AR-15–pattern semi-automatic rifle engineered for shooters who want cutting-edge performance from the 6mm ARC cartridge in a compact, pinned 14.5" configuration. Featuring a 14.5" match-grade threaded barrel with a pinned Dead Air flash hider for a 16" overall length, a brown Cerakote finish, and a 20-round magazine, this Model 1 is built for serious precision, long-range capability, and rock-solid reliability—right out of the box. Impact Guns+2KYGUNCO+2
If you’re looking for a high-end 6mm ARC AR-15 rifle that blends premium components, ambidextrous controls, and a rugged Cerakote finish, the Radian Model 1 R0851 is purpose-built to deliver.
6mm ARC Performance in a Compact 14.5" Pinned (16" OAL) Package
The heart of this rifle is its 14.5" match-grade barrel, pinned to reach a legal 16" overall length with the Dead Air flash hider installed: Impact Guns+2Revelations Arms+2
Caliber: 6mm ARC – designed for flat trajectories, excellent ballistic efficiency, and impressive downrange performance from the AR-15 platform. Radian Weapons+1
Barrel Length: 14.5" match-grade, pinned and welded Dead Air flash hider for 16" OAL. Impact Guns+2Arnzen Arms+2
Barrel Material: Stainless steel, threaded, match-grade profile, optimized for accuracy and consistency. Impact Guns+1
Muzzle Device: Dead Air KeyMo flash hider, helping tame muzzle flash and provide a ready interface for Dead Air suppressors (where legal). Impact Guns+2Palmetto State Armory+2
This setup gives you the ballistic benefits of 6mm ARC—extended reach, flatter shooting, and high-BC bullet compatibility—in a maneuverable carbine-length package that’s ideal for field, range, or match use.
Fully Ambidextrous AR-15 Controls
Radian is known for top-tier ambidextrous designs, and the Model 1 R0851 carries that DNA throughout the rifle: Impact Guns+2KYGUNCO+2
Ambidextrous magazine release
Ambidextrous bolt catch/release (A-DAC style double-action control on select models)
Radian Talon modular ambidextrous 45°/90° safety selector – configurable to your preferred throw angle. Impact Guns+2Palmetto State Armory+2
Ambidextrous Radian Raptor-SD charging handle, optimized for suppressor use and smooth manipulation from either side. Impact Guns+2Classic Firearms+2
Whether you’re left-handed, right-handed, or prefer to run your rifle from either shoulder, this Model 1 is designed to be truly ambi, not just “lefty friendly.”
Premium Brown Cerakote Finish & Billet Receivers
The R0851 isn’t just functional—it’s built to look and feel like a premium rifle:
Upper, lower, and handguard are Cerakoted together in Radian’s distinct brown tone for a perfectly matched finish and excellent corrosion resistance. Impact Guns+2KYGUNCO+2
Billet-machined 7075-T6 aluminum receivers with an integral trigger guard and flared magwell for strength and improved ergonomics. Palmetto State Armory+1
Extended free-float aluminum handguard with a Magpul M-LOK modular mounting system, providing plenty of space for lights, bipods, grips, and other accessories while protecting the barrel. Impact Guns+2KYGUNCO+2
This combination of billet receivers, Cerakote, and a full-length handguard gives the Model 1 a high-end feel that matches its performance.
Match-Grade Trigger for Precision Shooting
The Model 1 in this configuration is equipped with a match-grade trigger designed for crisp, predictable breaks:
Many listings for the R0851 specify an ATC AR Gold match-grade trigger, giving you a light, clean break and short reset that’s ideal for precision and speed. Impact Guns+1
This high-end trigger enhances the inherent accuracy of the 6mm ARC and the match barrel, helping you squeeze every bit of precision out of the platform.
Whether you’re ringing steel at distance or dialing in a hunting load, the trigger is up to the task.
M-LOK Handguard & QD-Ready Receiver Extension
The handguard and receiver extension are built with serious shooters in mind:
Extended M-LOK handguard with integrated top rail lets you mount optics and backup sights while adding accessories exactly where you need them. Impact Guns+2KYGUNCO+2
6-position mil-spec receiver extension with a QD end plate provides multiple sling mounting options and adjustable length of pull for different shooting positions and gear setups. Impact Guns+2Classic Firearms+2
This makes the Model 1 easy to adapt to precision prone work, barricade shooting, or dynamic field positions.
Purpose-Built for the 6mm ARC Role
Radian’s own description of the 6mm ARC Model 1 highlights how it’s engineered specifically around the ARC concept:
If you’ve been wanting to tap into what 6mm ARC can really do in a premium AR-15, the R0851 is built precisely for that mission.
20-Round Capacity & Included Magazine
This model ships ready for the range:
Capacity: 20+1 rounds of 6mm ARC, using a 20-round magazine optimized for the cartridge’s geometry. Impact Guns+2Arnzen Arms+2
Includes: 1 magazine, so you can head straight to the range once you’ve mounted your optic and zeroed.
Additional mags are widely available, but this included 20-rounder is a great starting point for training or hunting.
Key Specifications – Radian Model 1 6mm ARC R0851
From Radian and major retailers: Corvus Arms+4Impact Guns+4KYGUNCO+4
Manufacturer: Radian Weapons
Model: Model 1
Part Number: R0851
UPC: 810098420778
Platform: AR-15–style semi-automatic rifle
Caliber: 6mm ARC
Action: Semi-auto, direct impingement
Barrel Length: 14.5", match-grade, threaded, pinned Dead Air flash hider (16" overall length)
Muzzle Device: Dead Air KeyMo flash hider
Handguard: Extended free-float aluminum, Magpul M-LOK compatible
Receivers: Billet 7075-T6 aluminum, brown Cerakote
Overall Finish: Brown Cerakote on upper, lower, and handguard
Controls: Fully ambidextrous (mag release, bolt catch, safety, charging handle)
Charging Handle: Radian Raptor-SD ambidextrous, suppressor-optimized
Safety: Radian Talon modular ambi safety, 45°/90° configurable
Trigger: Match-grade (often listed as ATC AR Gold)
Receiver Extension: 6-position mil-spec with QD end plate
Capacity: 20 rounds (1 magazine included)
(Always verify local laws and FFL requirements before purchase and transfer.)
Who Is the Radian Model 1 6mm ARC R0851 For?
This rifle is a top choice if you:
Want a high-end AR-15 in 6mm ARC that’s ready for long-range precision, hunting, or serious training.
Prefer fully ambidextrous controls and premium touches like the Raptor-SD charging handle and Talon safety.
Appreciate the durability of Cerakote, the feel of billet receivers, and the flexibility of an M-LOK free-float handguard.
Need a 14.5" pinned (16" OAL) configuration for legal compliance without giving up compact handling.
Expect match-grade performance—both from the barrel and trigger—right out of the box.
For serious shooters who demand more than a basic AR, the Radian Weapons Model 1 6mm ARC 14.5" Pinned (16" OAL), Dead Air Flash Hider, Brown Cerakote, 20-Round Rifle (R0851 / 810098420778) delivers a feature-rich, precision-ready platform that’s built to perform at the highest level.
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