GrovTec Crush Washer .308 Win 5-Pack – Muzzle Device Installation

GrovTec crush washers provide proper timing and sealing for muzzle devices on .308 Winchester/7.62 NATO threaded barrels. These single-use washers compress during installation to align flash hiders, muzzle brakes, and compensators to the correct orientation while creating a secure, gas-tight seal between the device and barrel shoulder.

Manufactured from steel with a phosphate finish for corrosion resistance. Each washer is designed for one-time use—once compressed during installation, it should not be reused. Installation requires a barrel vise, action wrench, and proper torque wrench to ensure correct muzzle device timing and thread engagement. Pack of 5 allows for multiple installations or adjustments to achieve proper indexing.

• Part Type: Crush Washer
• Compatible Firearms: .308 Win/7.62 NATO threaded barrels
• Material: Steel
• Finish: Phosphate
• Installation: Gunsmithing tools required (barrel vise, torque wrench)
• Includes: 5 crush washers