CNCW 1/2X28 RH Square Shoulder Adapter

Add a Perfect 90° Square Shoulder to Your 1/2×28 Barrel – CNC Warrior Square Shoulder AdapterTired of dealing with barrels that have minimal or no shoulder for proper muzzle device alignment? The CNC Warrior 1/2×28 RH Square Shoulder Adapter solves this problem instantly. This precision-machined adapter installs onto your existing 1/2×28 RH threaded barrel and creates a true, square external shoulder. Your muzzle device (flash hider, muzzle brake, compensator, or suppressor mount) can then thread on fully and butt squarely against it for optimal concentricity and rock-solid alignment.

Machined from high-quality steel with tight tolerances, this adapter features an internal undercut and shoulder that mates perfectly with the barrel face. The external threads are also undercut, allowing your muzzle device to seat fully against the new square shoulder. Large wrench flats make installation quick and secure with proper torque.

Key Features & Specifications:

• Thread: 1/2×28 RH (internal)
• Creates a true 90° square external shoulder for perfect muzzle device seating
• Precision-machined internal and external shoulders – held to very close tolerances
• Undercut OD threads for full threading and butting against the shoulder
• Wrench flats for secure, high-torque installation
• Designed for barrels with minimal or no existing shoulder
• Minimum barrel threaded length required: 0.500″
• Ensures maximum straightness and alignment for muzzle brakes, flash hiders, and suppressors
• Made in USA by CNC Warrior – built for reliability and performance

Whether you’re building a custom AR-15, upgrading a pistol, or running a suppressor on a 1/2×28 host, this square shoulder thread adapter eliminates shimming issues and improves overall accuracy and safety by ensuring your muzzle device sits perfectly square.

Perfect for: AR-15 barrels, 5.56/.223 hosts, suppressor setups requiring a square shoulder, and any 1/2×28 RH threaded firearm needing better muzzle device alignment.

By purchasing CNCW 1/2X28 RH Square Shoulder Adapter from our online store, you are guaranteed to receive a high-quality item. We work with trusted brands to offer shooting and hunting enthusiasts, both amateur and professional, quality products at a reasonable price. Choosing to buy from us means opting for quality and practicality

The actual appearance of the product may differ from the image on the website. For additional information about payment, delivery, and product specifications, please contact us by phone or email.