Spikes Tactical Dynacomp Extreme 5.56 Features: The Spikes Tactical Dynacomp Extreme is a 5.56 muzzle device designed to reduce the recoil impulse felt by the shooter and eliminate muzzle climb to provide faster follow up shots. The Dynacomp accomplishes this reduction in recoil and climb by balancing the direction of the blast along both the vertical and perpendicular planes of the muzzle to reduce muzzle rise while the ports and crown of the device also help reduce rearward recoil. To improve appearance and provide smooth gas expansion the ports on the Dynacomp are ball dimpled and also encourage rapid heat dissipation. The front of the device is 0.25 thick to better handle the abuse of rapid fire. The entire device is Melonite treated to enhance these characteristics and provide a slick black finish that is both attractive and durable. Spike s Dynacomp Specifications: Brand: Spikes Category: Muzzle Brake Model: Dynacomp Extreme Series: 5.56 1/2x28 Threaded Type: Muzzle Brake Finish: Black Melonite Material: 303 Stainless Steel Size: 5.56mm Thread Pattern: .5x28 tpi