Armaspec Harmonics-Tuner Muzzle Brake Features The Armaspec Harmonics-Tuner Muzzle Brake fuses two functions into one device acting as both a recoil-reducing muzzle brake and a barrel tuner. The muzzle brake geometry redirects propellant gas to significantly cut felt recoil which keeps the sight picture steadier between shots. Beyond recoil control the tuner mechanism lets a shooter adjust barrel harmonics to find the vibration node that produces the tightest group with a given load. This dual functionality turns a standard muzzle device into a genuine accuracy tool for precision rifle shooters. Tuning is handled through a simple hex screw adjustment requiring no special tools to dial in a setting for a specific barrel ammunition or environmental condition. Built from stainless steel in a black finish the Harmonics-Tuner threads onto .30 caliber AR-15 and AR-10 pattern rifles using a 5/8x24 thread pattern. This durable construction stands up to repeated adjustment and heavy round counts without losing its tuning precision. The Armaspec Harmonics-Tuner Muzzle Brake is for sale at GrabAGun for precision shooters who want to combine recoil control with fine-tuned barrel harmonics. Armaspec Harmonics-Tuner Muzzle Brake Specifications Manufacturer: Armaspec Model: Harmonics-Tuner Muzzle Brake Type: Muzzle Brake Caliber: .30 Caliber Compatible Hosts: AR-15 AR-10 Color: Black Material: Stainless Steel Thread Pattern: 5/8x24 Available At: GrabAGun