Foundation of Barrel Integrity

The Gun Engineer Barrel Nut establishes the critical interface between your AR-15 barrel and receiver, delivering uncompromised structural integrity for long-term accuracy. Designed for professional armorers and builders, its precision-ground internal surfaces distribute clamp forces evenly across the barrel extension, preventing stress concentration points that cause zero shift during rapid-fire sequences.

Forged from heat-treated Chromoly steel and finished with military-grade nitride coating, this component withstands repeated torque applications and aggressive environmental exposure without thread degradation.

Critical Engineering Features:

• Torque-Tolerant Steel Construction – AISI 4140 Chromoly withstands 100+ ft-lb applications
• Anti-Galling Treatment – Diamond-like carbon coating eliminates thread galling
• Precision Timing Notches – Indexed engagement system for handguard alignment
• Thermal Stress Relief – Vacuum-sealed tempering eliminates material fatigue risks
• Mil-Spec Thread Pitch – 1.375″-24 TPI universal receiver compatibility
• Double-Lip Sealing Surface – Creates hydraulic lock with receiver face

Technical Specifications

Manufactured in Malaysia by Gun Engineer, ensuring precision and reliability.