The Ballistic Advantage 6mm ARC 20" DMR precision rifle barrel is built for shooters who demand accuracy and reliability in a modern intermediate cartridge platform. This stainless steel barrel is engineered for precision shooting at distance, whether you're running a designated marksman rifle setup, competing in PRS-style events, or building a capable mid-range hunting rifle. The 20-inch length strikes a practical balance between velocity and handling, making it a solid choice for shooters who want performance without unnecessary bulk.
Machined from 416R stainless steel, this barrel is finished with a bead blast that provides excellent corrosion resistance and a professional appearance. The DMR (Designated Marksman Rifle) profile gives you a rigid, stable barrel geometry designed for consistent shot grouping while keeping weight reasonable for field use. The nickel boron-coated M4 feed ramp extension ensures smooth, reliable feeding—critical for any rifle you're counting on to perform when it matters.
The 5/8x24 threaded muzzle is the standard for suppressor hosts and muzzle devices in this class, opening up flexibility for sound signature reduction or brake installation depending on your mission. Assembly is straightforward for gunsmiths and experienced builders; proper headspacing and installation in a quality upper receiver or action are essential. This barrel reward precision handloads and quality ammunition with tight groups—dial it in right and you'll feel the difference.
| Caliber | 6mm ARC |
| Barrel Length | 20 inches |
| Material | 416R Stainless Steel |
| Finish | Bead Blasted |
| Profile | DMR |
| Muzzle Thread | 5/8x24 |
| Feed Ramp | Nickel Boron Coated Extended M4 |
The 5/8x24 is the standard thread pitch for modern .30-caliber rifle suppressors and muzzle devices. Most quality suppressors and brakes in that class will thread directly onto this barrel. Always verify your specific device's compatibility before purchase.
The 6mm ARC is an intermediate cartridge designed for effective range out to several hundred yards. This 20-inch barrel with DMR profile is built for precision shooting and is used in designated marksman configurations. Suitability depends on your specific hunting distance and game—consult ballistics data and hunting regulations for your area.
This is a barrel blank. Installation requires proper headspacing, a quality upper receiver or action, and tools or expertise to chamber and time it correctly. Most builders work with a qualified gunsmith to ensure safe, accurate assembly.
416R stainless offers superior corrosion resistance and longevity, especially in harsh field conditions. It's ideal for shooters who demand durability and are willing to accept slightly more barrel weight compared to chrome moly alternatives.
Ballistic Advantage
Ballistic Advantage
Ballistic Advantage
Ballistic Advantage
