The Energetic Armament Ferox 5.56 Suppressor (Energetic Armament part no. EA13) is a lightweight, hard-use suppressor built for modern 5.56 rifle platforms threaded 1/2×28. Its welded core of heat-treated 17-4 H900 stainless steel is engineered for exceptional durability, reduced back pressure, and strong sound suppression in a compact package optimized for short- and mid-length barrel rifles. The Ferox’s industry-standard 1.375×24 HUB mounting interface is compatible with a wide range of popular mounting systems and muzzle devices, giving shooters flexibility across multiple rifle setups. Energetic Armament designed the Ferox to minimize gas blowback while holding up to sustained hard use.

Key Specifications

• Chambered for .223 REM/5.56 NATO.
• Core built from heat-treated 17-4 H900 stainless steel.
• Uses the 1/2×28 thread pattern for direct-thread mounting.
• Features a 1.375×24 HUB mounting interface for broad muzzle device compatibility.
• Optimized for short- and mid-length barrel rifles.
• Manufactured by ENERGETIC ARMAMENT.
• Model designation Ferox.
• Classified by the manufacturer as a Suppressor product type.
• UPC 853406008138 identifies this exact configuration.

Frequently Asked Questions

Is this an NFA item? Yes. As a suppressor, it’s a Title II firearm requiring an approved ATF Form 4 and transfer through an NFA-licensed dealer.

Does it reduce felt recoil and gas blowback? The welded stainless core and HUB mounting interface are designed to lower back pressure, which in turn reduces gas blowback into the action compared to many competing designs.

Buy the Energetic Armament Ferox 5.56 Suppressor

This is a Title II item regulated under the National Firearms Act. Purchase requires an approved ATF Form 4, no federal transfer tax, and transfer through a licensed NFA (SOT/Class 3) dealer, with an extended federal approval wait before delivery. Order through Energetic Armament‘s suppressor lineup and our Lubbock, Texas team will walk you through the transfer process.