.300 BLK Helix Barrel

The Helix Barrel is a turnkey solution for optimized gas control, whether you’re shooting suppressed or unsuppressed. Like our Gold Ring Barrels, our Helix Barrels feature our enhanced barrel extension with extended thread engagement and dedicated feed ramps, which are subtle but critical upgrades offering increased reliability and improved feeding. Our Helix barrels also come fully outfitted with the entire Helix gas regulating system for tool-less adjustment of your gas, but remain backwards compatible with any standard gas block.

Includes:

Helix gas block
Gas tube
Transfer plate
High-temp spring
Detent
M42 steel adjustment rod
Integrated adjustment knob

Just add your muzzle device and appropriately sized handguard — everything else is handled.

The gas port diameter for our gas system barrel is as follows:

• 9″ Pistol:  0.0995” gas port diameter