Yankee Hill Machine Co JAM NUT VICTRA-12 BLK – Muzzle Device Lock Nut for 1/2x28 Threads

The Yankee Hill Machine JAM NUT VICTRA-12 is a precision lock nut designed to secure muzzle devices on threaded barrels. This jam nut prevents muzzle brake, flash hider, or compensator migration under sustained firing by creating a solid lock between the device and barrel shoulder. Essential for maintaining proper timing and zero retention on rifles with aggressive recoil or high round counts.

Machined from steel with a black oxide finish for corrosion resistance. The VICTRA-12 jam nut installs between your muzzle device and barrel shoulder—torque to manufacturer specifications to ensure your device stays properly indexed. Compatible with standard 1/2x28 threaded barrels commonly found on .223/5.56 AR-15 platform rifles and other firearms using this thread pitch.

• Type: Muzzle Device Lock Nut
• Thread Pitch: 1/2x28
• Material: Steel
• Finish: Black Oxide
• Compatible Firearms: AR-15, .223/5.56 rifles with 1/2x28 threads