Desert Tech .308 Win 3/4-24 QD Muzzle Brake Black DT-SRS-BR-004-AAN. 308 Win 3/4 x 24. Enhances Accuracy Through Uniform Gas Dispersion and Harmonic Stabilization. Reduces Barrel Whip. Threaded To Accept Sound Suppressors Specifications for Desert Tech .308 Win 3/4-24 QD Muzzle Brake: Manufacturer: Desert Tech Color: Black Caliber: .308 Winchester Threads per Inch: 3/4x24 Package Contents: Desert Tech .308 Win 3/4-24 QD Muzzle Brake Desert Tech DT-SRS-BR-004-AAN: .308 Win 3/4-24 QD Muzzle Brake Black