The Fortis RED STS Muzzle Brake for 5.56 is the Fortis Rapid Engagement Device for AR-15 rifles threaded 1/2x28. It cuts recoil and muzzle rise so you stay on target and get faster follow-up shots.

Fortis built the RED to work as well as it looks. It was tested and evaluated by military and law enforcement shooters, then put to the test by 3-Gun competitors, and it held up under harsh full-auto conditions. The brake is 303 stainless steel and is made in the USA. It is Control Shield compatible, and a crush washer is included for installation.

Features:

• Fortis RED (Rapid Engagement Device) muzzle brake
• Caliber: 5.56
• Thread pitch: 1/2x28
• 303 stainless steel construction
• Control Shield compatible
• Crush washer included
• Made in the USA

Fit check: confirm your barrel is 5.56 / .223 and threaded 1/2x28 before you order. Do not mount a 5.56 brake on a larger-caliber barrel, even if the threads match.

Time the brake with the crush washer so the ports are oriented correctly, and check that it is tight before firing. Expect more side blast than a flash hider.