Geissele Automatics GFR Stratomatch 6mm ARC 20" - AR-15 Rifle
Details
The Geissele Automatics GFR Stratomatch 6mm ARC 20" redefines what an AR-15 can do at distance. With 6mm ARC in the chamber, it delivers meaningfully better ballistics beyond 300 yards than any 5.56 platform can match.
Built as a semi-automatic AR-15 rifle around 6mm ARC and a rifle-length direct impingement system, the Geissele Automatics GFR Stratomatch 6mm ARC 20" delivers a proven AR-15 experience from first round to last.
Extended Effective Range: The 6mm ARC cartridge maintains significantly better ballistic performance past 300 yards than 5.56 NATO — this is the platform for shooters who need genuine reach from an AR-15.
AR-15 Lower Compatibility: Standard AR-15 lower receivers work without modification. Caliber-specific BCG and magazines are the only requirements, preserving your existing lower investment.
Hunting Viability: Improved terminal energy makes 6mm ARC suitable for deer and medium game at distances where 5.56 runs out of steam — a meaningful expansion of what this AR-15 platform can do.
Precision Potential: The 20" barrel maximizes 6mm ARC velocity and accuracy at the ranges where its performance advantage over 5.56 is most pronounced.
- Caliber: 6mm ARC
- Barrel Length: 20"
- Gas System: Rifle-Length Direct Impingement
- Handguard: 18" M-Lok Free-Float
- Muzzle Threading: 5/8x24
- Magazine Capacity: 8-Round
- Finish: Type III Hardcoat Anodized
- Origin: Made in the USA
Uses a standard AR-15 lower receiver with caliber-specific BCG and 6mm ARC magazines. Compatible with mil-spec buffer systems and standard lower parts kits throughout.
Type III Hardcoat Anodized over stainless steel construction gives this AR-15 rifle solid corrosion resistance and a durable surface that holds up across a wide range of storage and operating conditions.
Purpose-made for long-range precision work, medium game hunting, and competition shooting. A platform upgrade for shooters who've outgrown what 5.56 can do at distance.
Geissele Automatics is synonymous with precision — their Super Duty and Freedom Rifle platforms are actively used by U.S. Special Operations units and trusted by professional users worldwide. Made in the USA.