Geissele GFR MOD1 6mm ARC 20" Bbl Stratomatch Black Rifle 08-650B

Most rifles get built for one specific role and end up compromising everywhere else. The Geissele GFR MOD1 6mm ARC 20" Stratomatch 08-650B takes a different approach — a hard-use, do-everything build designed to hold up whether it's running duty rotations, sitting ready for defense, hunting in the field, or competing on the clock. That versatility comes from engineering the platform specifically around 6mm ARC rather than treating the cartridge as an afterthought.

The 6mm ARC Rifle category has earned attention for good reason — flat trajectories, strong energy retention downrange, and high ballistic coefficients that outperform what a lot of shooters expect from a cartridge this size. Geissele built the platform to actually take advantage of that ballistic performance instead of just chambering a barrel and calling it done, which means you get real downrange capability without sacrificing the lightweight handling that makes a rifle practical to carry all day.

Fully ambidextrous controls carry through the whole build, giving left- and right-handed shooters the same fast, intuitive reloads and malfunction clearances. That kind of consistency matters whether you're working a competition stage or something considerably more serious. Underneath, a 20" cold hammer forged, chrome-lined barrel — manufactured in-house — delivers the durability and precision this Geissele stratomatch platform is built around. The Nanoweapon-coated Reliability Enhanced BCG runs with a forged Carpenter 158+ bolt, and Geissele's patented Phased Array Gas Technology cuts recoil impulse so you're back on target faster between shots. It ships with one 8-round Geissele ICM magazine, with 15, 20, and 30-round options available separately.

Key Features

• 20" cold hammer forged, chrome-lined barrel manufactured in-house
• Chambered in 6mm ARC for flat-shooting, high-energy downrange performance
• Fully ambidextrous lower receiver controls for speed and usability
• Nanoweapon-coated Reliability Enhanced BCG with forged Carpenter 158+ bolt
• Patented Phased Array Gas Technology for reduced recoil and faster reacquisition
• Built for duty, defense, hunting, and competition applications