Griffin Armament M4SD 3 Prong Flash Hider, 5.56, 1/2×28

Description

The Griffin Armament M4SD Gen 3 3-prong flash hider is a suppressor-compatible muzzle device designed as an alternative to A1/A2 birdcage flash suppressors. It provides reduced visible flash and helps manage muzzle movement while offering a secure GATE-LOK interface for compatible M4SD series suppressors. CNC-machined and outside-diameter ground from precipitation-hardened 17-4PH stainless steel for durability. The device ships with a shim set and over-travel stop washer and is pre-drilled for pinning and welding to a 14.5-inch barrel to achieve a 16-inch non-NFA overall length.

Key Specifications

• The device is specified for 5.56 applications as listed in the product name.
• The thread pattern is 1/2×28 for standard 5.56 carbines.
• Construction material is 17-4PH stainless steel.
• The outside diameter measures 0.863 inches.
• The overall length is 2.25 inches.
• Shim set and over-travel stop washer are included with the device.
• The unit is pre-drilled for pinning and welding to a 14.5-inch barrel to achieve a 16-inch non-NFA length.
• Compatible with M4SD series GATE-LOK suppressors and the QD Blast Shield.
• Features an ambidextrous QD mount on the interface.
• Porting and geometry are calculated to reduce flash signature and neutralize muzzle movement.

Built for users who prioritize a durable, suppressor-ready muzzle interface, the Griffin Armament M4SD Gen 3 3-prong flash hider combines precision machining and practical features (shim kit, over-travel stop) to integrate cleanly into modern 5.56 platforms. Its design balances flash reduction and muzzle control while providing a secure GATE-LOK suppressor interface for range and field use.