Fortis Red Sts Muzzle Brake 556

The Fortis RED STS is a 5.56 muzzle brake engineered for shooters who demand both performance and durability. Built from 303 stainless steel, this brake is designed to manage recoil and keep your sight picture steady—whether you're running competitive three-gun courses, training at the range, or drilling from a carbine platform. Fortis Manufacturing built the RED around real-world feedback from military, law enforcement, and competitive shooting communities, then validated it under full-auto fire to ensure it performs when it matters.

The 1/2x28 threading makes it compatible with most modern 5.56 platforms. It ships with a crush washer for secure installation and is manufactured in the USA. The RED is also compatible with common control shields, so it integrates cleanly into your setup without requiring additional adapters.

If you're looking for a muzzle brake that combines proven engineering, versatile compatibility, and American-made quality, the Fortis RED STS delivers straightforward recoil management without the hype.

Key Features

• 303 stainless steel construction for durability and corrosion resistance
• 1/2x28 threading for standard 5.56 rifle compatibility
• Designed and validated by military, law enforcement, and competitive shooters
• Tested under full-auto conditions
• Control shield compatible
• Includes crush washer
• Made in the USA

Specifications

Frequently Asked Questions

Will the Fortis RED STS work on my 5.56 rifle?

Yes, if your rifle has a 1/2x28 threaded barrel. This is the standard threading for most modern 5.56 platforms including AR-15s and other common carbines.

Is the crush washer included?

Yes. The Fortis RED STS comes with a crush washer, which is needed for proper installation and headspacing.

Can I use this brake with a suppressor cover or control shield?

Yes. The RED STS is compatible with common control shields, so it integrates without extra adapters.

Is this brake made in the USA?

Yes. Fortis manufactures the RED STS domestically.