The Griffin Armament Gate-LOK Flash Comp XHP556FC combines the functions of a muzzle brake, tactical compensator, and flash suppressor in one durable firearm component. Designed for compatibility with Griffin Armament M4SD series Gate-LOK suppressor interfaces, it provides an integrated mounting solution for compatible suppressors while helping manage muzzle flash, recoil, and concussion. The Flash Comp earned a perfect 5 out of 5 evaluation from the National Tactical Officers Association, receiving the organization’s Gold seal of approval.
Constructed from rugged 17-4 stainless steel with a nitride finish, the Griffin Armament XHP556FC is built for demanding use and provides a sacrificial baffle intended to help extend suppressor service life. Its pre-drilled design supports permanent attachment on qualifying 14.5- to 16-inch non-SBR M4 carbine builds. For optimal flash reduction, Griffin Armament recommends use with host weapons featuring barrels at least 14.5 inches long. Always verify compatibility and comply with applicable laws and installation requirements before permanent attachment.
The Gate-LOK Flash Comp uses a 1/2-28 thread pattern and includes a shim set and over-travel stop washer for suppressor mounting. Its combination of extreme durability, flash reduction, recoil control, and suppressor interface functionality makes it a practical choice for compatible AR-pattern platforms. Professional installation is recommended, particularly for permanently attached muzzle devices, to ensure proper alignment and safe operation.
Features:
- Brand: Griffin Armament
- Part Number: XHP556FC
- Model: Gate-LOK
- Compatibility: Griffin Armament M4SD series Gate-LOK suppressor interface
- Function: Combines muzzle brake, tactical compensator, and flash suppressor features
- Material: 17-4 stainless steel
- Finish: Nitride
- Thread Pattern: 1/2-28
- Design: Sacrificial baffle helps increase suppressor service life
- Installation: Pre-drilled for qualifying permanently attached 14.5- to 16-inch non-SBR M4 carbine builds
- Included: Shim set and over-travel stop washer
- Testing: Received a perfect 5 out of 5 NTOA evaluation and Gold seal approval
