Coming with a 1/2 x 36 thread pitch, it's the radial fluting that stands out to us. Eight pounds lowering flutes give the KVP linear compensator style and design a chance to accumulate and redirect all muzzle gases forward and clear of the shooter. This Unique CX4 version Now we https://gunsandammunation.com/shop/beretta-typhoon-muzzle-brake-1-2x28-9mm/