MUZZLE BRAKE 5.56 QD 1/2-28 FOR TURBO/TURBO K Manufacturer Model Number: YHM-5M2-QD Manufacturer: Yankee Hill Machine Company Model: Muzzle Brake Caliber: 30 Caliber | 7.62mm Type: Accessory-Muzzle Brakes Item Type: Accessory Finish: Black Shipping Weight: 0.3 Feature: Q.D. Mount for Turbo/Turbo-K Feature: Includes Shim Kit Optic Adjustable Objective: false Optic Reticle Illuminated: false