Maxim Defense QD Muzzle Device - 5/8-24 - Stainless Steel

Built for the demands of larger-caliber platforms, the Maxim Defense QD Flash Hider in 5/8x24 delivers the same aerospace-grade construction and quick-detach capability as its smaller sibling — scaled for .308, 6.5 Creedmoor, and compatible rifle systems.

The Maxim Defense QD Flash Hider is a 17-4 H900 stainless steel muzzle device for 5/8x24 threaded barrels, providing a precision QD interface for HUB adapters and standalone flash suppression for unsuppressed use.

The 5/8x24 QD Flash Hider serves as the anchor point for the Maxim Defense modular muzzle system on larger-caliber platforms. A 1-16 Acme QD thread provides the interface for HUB QD Adapters (sold separately), enabling tool-free suppressor attachment and removal with positive lockup and repeatable alignment. Used without a suppressor, it functions as an effective standalone flash hider, reducing muzzle signature on unsuppressed shots. The Richter C3B finish maintains low-friction thread engagement across attachment cycles and simplifies post-use cleaning on a device that sees high thermal exposure at the muzzle of any centerfire rifle.

• Thread Pitch: 5/8x24
• Weight: 2.2 oz
• Length: 1.875 inches
• Material: 17-4 H900 stainless steel
• Finish: Richter C3B coating
• QD Thread: 1-16 Acme
• Suppressor Mount: HUB QD Adapter compatible (sold separately)

Compatible with all rifles threaded 5/8x24, including .308 Winchester, 6.5 Creedmoor, .300 Blackout subsonic builds, and most large-format AR platforms with matching muzzle thread specifications.

17-4 H900 stainless steel provides a combination of corrosion resistance and mechanical hardness that holds up to the sustained heat and pressure of large-caliber fire. The Richter C3B coating extends service life by resisting carbon adhesion at the threads and muzzle contact surfaces.

An appropriate base component for any .308 or larger-format suppressor-ready build, as well as a practical standalone flash hider for unsuppressed patrol rifles, precision carbines, and designated marksman platforms running 5/8x24 muzzle threading.

Maxim Defense backs the QD Flash Hider with their manufacturer warranty, holding their muzzle devices to the same engineering standards as their complete rifle platforms.