Griffin Armament DUAL-LOK 2.25" Stealth Flash Hider Suppressor Mount – Stainless Steel Nitride

The Griffin Armament DUAL-LOK 2.25" Stealth Flash Hider is a quick-detach suppressor mount built on a novel indexing system that delivers rock-solid repeatability without the fuss of timing, shims, or consumable parts. If you're running a suppressed rifle and tired of point-of-impact shift or loose mount connections, this stainless steel nitride muzzle device offers a wear-free solution that locks your can down tight and keeps it there, shot after shot.

The DUAL-LOK system works through dual locking positions machined 3 degrees out of phase on the mount, paired with 60 grooves on the muzzle device itself. That geometry yields 120 effective mounting positions, giving you the rigidity of a pinned suppressor with the convenience of quick detach. The mount engages via spring-loaded locking collar over splines—no tools, no fiddling, just push, twist, and lock. Because only one of the two positions needs to function at any given time, the design tolerates wear and maintains a secure, accurate connection throughout the suppressor's life.

Built from 17-4 PH stainless steel and finished with QPQ nitride treatment, this flash hider shrugs off corrosion and handling abuse. The 3-prong flash-reduction geometry was developed to suppress muzzle flash effectively while eliminating the ring and ping you get from resonance—hence "Stealth." The unit comes pre-drilled for pinning and welding on 14.5" barrels to achieve 16" OAL compliance. At 2.25" long and 3.3 oz, it adds minimal weight and length to your platform.

Whether you're building a suppressed precision rifle, a tactical AR, or a hunting gun that needs flash control, the DUAL-LOK system removes the guesswork from suppressor mounting and gives you confidence that your optics zero won't drift between suppressions and removals.

Key Features

• 120 effective locking positions—dual out-of-phase mounting geometry for repeatable, rock-solid suppressor indexing
• Wear-free, no-consumable-parts design maintains security throughout the suppressor's service life
• 3-prong anti-resonance flash hider suppresses muzzle flash without ringing or pinging under fire
• Quick-detach mount—no timing, shims, or tools required; spring-loaded locking collar engages via splines
• 17-4 PH stainless steel with QPQ nitride finish for superior corrosion and wear resistance
• Pre-drilled for pinning and welding on 14.5" barrels to 16" OAL
• Wrench flats for easy installation and removal
• Utility patent pending

Specifications

Frequently Asked Questions

Will the DUAL-LOK mount work with other suppressors, or just Griffin cans?

The DUAL-LOK system consists of two parts: the muzzle device (this stealth flash hider) and the DUAL-LOK mount that attaches to your suppressor. You'll need a compatible DUAL-LOK mount on your suppressor for the system to function. The 60 grooves on this muzzle device pair with a DUAL-LOK mount to create the 120 effective locking positions.

Do I need to time this flash hider or use shims?

No. The DUAL-LOK system requires no timing or shims. The dual out-of-phase locking positions and spring-loaded collar design handle alignment automatically when you attach your suppressor—just push and twist.

Can this be pinned and welded for a 14.5" rifle?

Yes. This muzzle device is pre-drilled for pinning and welding on 14.5" barrels to achieve 16" OAL compliance.

Will switching suppressors on and off cause my zero to shift?

The 120 effective locking positions and wear-free design are engineered to minimize point-of-impact shift by providing consistent, repeatable mounting indexing every time you attach or remove your suppressor.