The JK Armament Pro-Kor (brand part no. JK172PROKOR556K) is a 5.56mm suppressor built using advanced 3D-printed construction from 17-4 stainless steel and Haynes 282, designed for shooters who run their gear hard. JK Armament optimizes the Pro-Kor’s internal geometry for durability under sustained use, finished in black. The Pro-Kor favors AR-platform shooters who want a hard-use suppressor built from an aerospace-grade superalloy blend.

Key Specifications

• Rated for .223 Rem/5.56 NATO for AR-platform sound suppression.
• Built from 3D-printed 17-4 stainless steel and Haynes 282 for hard-use durability.
• Direct-thread 1/2×28 mount for compatible muzzle devices.
• Finished in black.

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.

What caliber is it rated for? .223 Rem/5.56 NATO.

How does it mount? A 1/2×28 threaded direct-mount system, not a quick-detach mount.

Buy the JK Armament Pro-Kor 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 JK Armament‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will walk you through the transfer process.