This G-Brake Muzzle Brake from GrovTec is bore sized for .308/7.62 NATO with 5/8×24 threads, built by GrovTec to help manage recoil on an AR-10-pattern rifle (GrovTec part no. GTHM363).

Key Specifications

• Bore sized for .308/7.62 NATO.
• Cut with 5/8×24 threads.
• Sized for AR-10-pattern rifles.
• Part of GrovTec’s G-Brake muzzle device lineup.
• Functions as a muzzle brake to help manage recoil.
• American-made accessory, per the manufacturer.
• Direct-thread installation, no additional adapter needed.
• Marketed to hunters, service members, and competitive shooters alike.

Frequently Asked Questions

Will this fit a 5.56 AR-15? No, this version is sized for .308/7.62 NATO; GrovTec offers a separate G-Brake sized for 5.56 rifles.

Is this a flash hider or a brake? It’s built and marketed as a muzzle brake, focused on recoil and muzzle-rise management rather than flash suppression.

Buy the GrovTec G-Brake Muzzle Brake, 7.62mm, 5/8×24

Manage recoil on your .308 AR-10 with this GrovTec G-Brake muzzle brake. It ships fast from our Lubbock, Texas gun shop, and our AR-15 muzzle devices selection has more AR-10 muzzle devices.