Ultradyne USA Mercury Muzzle Brake for AR-15 223/5.56 1/2×28 – Includes Timing Nut (UD10670)

• Muzzle brake designed for AR-15 rifles chambered in 223 Remington and 556 NATO
• 1/2x28 thread pitch ensures compatibility with standard AR-15 barrels
• Constructed from 416 stainless steel with nitride finish for durability
• Progressive side ports distribute gas to manage recoil impulse effectively
• Includes shrouded timing nut for proper alignment during installation
• Weighs approximately 3.1 ounces for lightweight performance enhancement

The Ultradyne USA MERCURY Brake 5.56MM/223REM is a muzzle brake designed for recoil control on AR-15 rifles. This Ultradyne USA MERCURY Brake uses a 1/2×28 thread interface and is configured for 5.56 NATO and .223 Remington calibers.

The Ultradyne USA MERCURY Brake is manufactured from 416 stainless steel with a black nitride finish and weighs approximately 3.1 ounces. It features progressive 90-degree side ports that vent gases in stages and includes a shrouded timing nut for proper alignment during installation. This model fits AR-15 platforms with standard 1/2×28 muzzle threads and maintains a compact profile. In standard configurations, this muzzle brake is used for range use where controlled gas venting is required. The Ultradyne USA MERCURY Brake uses CNC machined construction and is designed to mount securely to compatible threaded barrels.