BANISH Speed K Direct Thread Suppressor .223 Rem/5.56mm Inconel 1/2"x28 Black 4" Length

The BANISH Speed K direct thread suppressor for .223 Rem/5.56mm is built for shooters who need serious sound reduction without compromise. Constructed entirely from Inconel—a material chosen for its durability and heat management—this 4-inch suppressor delivers 20.9 dB of sound reduction while maintaining reliable function across both semi-auto and full-auto platforms. Developed in partnership with Federal Ammunition and law enforcement, the Speed K is engineered for tactical applications where dependability and performance matter.

The suppressor's design emphasizes practical performance in real-world conditions. Its clipped-wall baffles and finned blast chamber work together to maximize sound attenuation, while controlled flow technology and a vented 4th baffle keep gas blowback to just 5.8% above unsuppressed levels—meaning your rifle cycles reliably without modification. At only 14.1 ounces and 4 inches long, the Speed K won't bulk up your rifle or slow your movements in tight spaces. It comes with an industry standard hub mount (1/2x28 thread pitch) that allows you to run it as a direct-thread can or adapt it to a quick-detach system with optional muzzle brakes.

Durability is where the Speed K stands apart. It passed seven rounds of SOCOM testing—each round driving 1,440 rounds downrange in rapid succession. Most suppressors don't survive even one. That level of proven reliability, combined with a lifetime warranty, makes this a suppressor you can trust when it counts. Whether you're running precision drills at the range, hunting with a modern rifle, or relying on a 5.56 platform in demanding conditions, the Speed K delivers the sound reduction and durability professionals choose.

Key Features

• 100% Inconel construction for durability and superior heat management
• 20.9 dB sound reduction with clipped-wall baffles and finned blast chamber
• Full-auto rated and proven through seven rounds of SOCOM testing
• Controlled flow technology minimizes gas blowback to 5.8% above unsuppressed levels
• Compact 4-inch length designed for close-quarters and tactical movement
• Direct-thread industry standard hub mount (1/2x28); quick-detach compatible with optional muzzle brakes
• Cerakote black finish resists corrosion
• Lifetime warranty

Specifications

Frequently Asked Questions

What rifles and calibers does the Speed K work with?

The Speed K is designed for .223 Rem and 5.56mm platforms. The 1/2x28 direct-thread mount fits the standard muzzle thread on modern .223/5.56 rifles. It is rated for both semi-auto and full-auto fire.

Can I use the Speed K with a quick-detach system?

Yes. The suppressor comes with a direct-thread hub mount, but it features an industry standard hub that allows you to attach optional muzzle brake devices for quick-detach mounting if you prefer that flexibility.

How much sound reduction does it provide?

The Speed K delivers 20.9 dB of sound reduction. While no suppressor makes a rifle hearing-safe in isolation, this level of attenuation significantly reduces report in tactical, hunting, and range applications.

Will the Speed K cause reliability issues with my rifle?

No. The Speed K's controlled flow design and vented 4th baffle limit gas blowback to only 5.8% above unsuppressed levels, meaning your rifle will function reliably without any modifications. It's rated for full-auto use, so semi-auto rifles cycle normally.