AAC Adapter 1.375x24 to 1/2x28 Thread Mount

This AAC thread adapter allows mounting of 1.375x24-threaded muzzle devices or suppressors onto barrels with standard 1/2x28 threads. Commonly used to adapt older AAC suppressors or brakes to modern rifle platforms chambered in .223/5.56mm or other calibers using 1/2x28 thread pitch.

Precision-machined to maintain concentricity and ensure proper alignment between barrel and muzzle device. Steel construction with durable finish. Verify thread compatibility and caliber clearance before installation. Use appropriate thread locker and torque to manufacturer specifications. NFA rules apply when used with suppressors.

• Type: Thread Adapter
• Input Thread: 1/2x28
• Output Thread: 1.375x24
• Material: Steel
• Compatible Calibers: .223/5.56mm and other 1/2x28 threaded barrels (verify clearance)
• Use: Adapts 1.375x24 devices to 1/2x28 barrel threads