Griffin GP5 Suppressor 5.56/.223 1/2×28 6.25in Black

The Griffin Armament GP5 is a direct-thread suppressor intended for use with .223 Remington / 5.56 NATO calibers. It is constructed from 17-4PH stainless steel and finished in black Cerakote, and uses Griffin’s ECO-FLOW baffle technology for internal sound mitigation. The design includes front and rear 3/4-inch wrench flats for multiple mounting or rail-integration options and attaches via standard 1/2×28 threads.

Key Specifications

• The caliber is listed as .223 REM / 5.56 NATO.
• The model is specified as GP5.
• The attachment uses a 1/2×28 thread pattern (direct thread).
• The overall length is 6.25 inches.
• The diameter is 1.50 inches.
• The material is 17-4PH stainless steel.
• The finish is black Cerakote.
• Manufacturer literature lists a measured attenuation of 31 dB in at least one configuration.

Engineered for durability and general-purpose use, the GP5 offers a compact footprint and industry-standard direct-thread mounting for straightforward integration with compatible .223/5.56 platforms. Its stainless construction and proven baffle geometry make it suitable for users who prioritize a robust, serviceable suppressor with multiple mounting options.