ATI Outdoors Shark Muzzle Brake - Black Oxide Steel, 1/2"-28 tpi Threads for .223/5.56 AR-15

The ATI Outdoors Shark Muzzle Brake is a ported steel brake designed for AR-15 rifles chambered in .223/5.56 NATO. Built from a solid steel block and finished in black oxide, this brake threads onto barrels with 1/2"-28 TPI pitch—the standard for modern AR-15 uppers. The side and top porting reduces backpressure while managing felt recoil, making it a practical choice for shooters looking to tame muzzle rise during rapid fire or competition use.

The brake is CNC machined for consistency and ships with a crush washer for installation. The black oxide finish provides corrosion resistance and a clean, professional look that works equally well on a duty rifle or a range gun. Whether you're tuning a new upper or upgrading an existing barrel, the Shark brake's straightforward design prioritizes function over unnecessary bulk.

Mounting is straightforward: the crush washer method ensures the brake indexes correctly to your barrel's porting pattern with no special tools required. This is a no-frills component built to handle the heat and pressure of centerfire rifle shooting without complications.

Key Features

• Ported design (side and top) to reduce backpressure and manage recoil
• CNC machined from solid steel block for durability
• Black oxide finish for corrosion protection
• 1/2"-28 TPI threading—standard for AR-15 barrels
• Includes crush washer for proper installation

Specifications

Frequently Asked Questions

Will this brake fit my AR-15 barrel?

The Shark brake is designed for .223/5.56 AR-15 barrels with 1/2"-28 TPI threads. Before purchase, verify your barrel's thread pitch and caliber. If your barrel uses a different thread pitch (such as 5/8"-24), this brake will not fit.

Does it come with installation tools?

The brake ships with a crush washer for installation. You'll need a barrel nut wrench or armorer's wrench to remove your existing muzzle device and install the brake, but those are standard AR-15 tools.

What's the purpose of the porting?

The side and top ports reduce backpressure at the muzzle, which helps mitigate felt recoil and muzzle rise. This is especially useful for shooters managing rapid fire, competition shooting, or those sensitive to recoil impulse.

What finish does it have?

The Shark brake features a black oxide finish, which provides corrosion resistance and a durable protective coating. Black oxide is standard for steel AR-15 components and will darken slightly with use.