The Energetic Armament Direct Thread Adapter in 5/8×24 stainless steel (Energetic Armament part no. EA27) mounts a 5/8×24 barrel to the 1.375×24 HUB thread used by many suppressors. It is machined from US-origin, DFARS-compliant 17-4 H1150 stainless and finished in black nitride. Energetic Armament lists it for the PEAK30, LUX, VOX, SONUS and FEROX silencers and other 1.375×24 designs. The stainless build is the tougher, heavier alternative to the company’s titanium adapters.

Key Specifications

• The barrel-side thread is 5/8×24, so this part fits muzzles cut to that pitch.
• The suppressor-side thread is 1.375×24 (HUB), the common mount used by many silencers.
• It is machined from 17-4 H1150 stainless steel, chosen for durability under repeated mounting.
• The finish is black nitride, which adds wear and corrosion resistance.
• The wrench flats are 13/16-inch hex, which a standard wrench will grip.

Frequently Asked Questions

Which suppressors does it fit? Energetic Armament lists it for the PEAK30, LUX, VOX, SONUS, FEROX and other silencers with a 1.375×24 (HUB) mount.

Is this adapter stainless or titanium? It is 17-4 H1150 stainless steel with a black nitride finish. Energetic Armament sells titanium adapters separately.

Buy the Energetic Armament Direct Thread Adapter, 5/8×24 Stainless Steel

Pair a 5/8×24 barrel with a 1.375×24 can through this stainless adapter. Add it to your order with other Class 3 parts and accessories and we will ship it from our Lubbock, Texas gun shop, fast and insured.