The muzzle is threaded at 1/2x28 TPI to accept a wide variety of 5.56-compatible muzzle devices. The 15" free-float aluminum Palm Handguard features a full-length top rail and a triangular profile ...

Snake Hound Machine has released a video on YouTube explaining and demonstrating it , and the device certainly seems to accomplish its intended goal. It makes a shortly AR’s muzzle blast look ...