The ARMASPEC Harmonics Tuner Muzzle Brake combines effective muzzle control with precision harmonics tuning for .30 caliber firearms in a sleek black finish.ARMASPEC Harmonics Tuner Muzzle Brake (SKU: ARM1932-BLK).30 caliber compatibilityBlack anodized finishAR-15 accessory designed for optimal performanceCompact dimensions: 1.60 x 3.65 x 5.55 inchesHarmonics tuning technology for improved accuracyEngineered for AR-15 platforms this muzzle brake reduces felt recoil while the integrated harmonics tuner helps optimize barrel harmonics for enhanced shooting precision and consistency.