HUXWRX Blastphemy Muzzle Device Black. 338). It was designed to redirect the blast forward protecting the shooter and bystanders from micro-concussions and overpressure. Additionally it doubles as a thread protector for your muzzle device. It is ideal for shooting against cover and/or in the prone position. This product is NOT compatible with the Bannar or Comp-STS muzzle devices. Specifications for HUXWRX Blastphemy Muzzle Device: Manufacturer: HUXWRX Condition: New Package Contents: HUXWRX Blastphemy Muzzle Device HUXWRX 2291: Blastphemy Muzzle Device Black