The SilencerCo Thread Protector (brand part no. AC1361) keeps a threaded .45 ACP barrel’s threads crisp and protected whenever a suppressor isn’t mounted. Simply twist it onto the end of the barrel, being careful not to cross-thread, and it seals out dust and debris that would otherwise clog the threads during transport or storage. Cut to a .578×28 thread pitch, it is compatible with most US-made .45 ACP barrels, including AR-platform pistol-caliber builds. Machined from black steel, it is a cheap insurance policy against damaged threads on a suppressor-ready barrel.

Key Specifications

• Protects barrel threads whenever no suppressor is mounted.
• Installs with a simple twist-on fit.
• Seals out dust and debris that would otherwise clog the threads.
• Cut to a .578×28 thread pitch.
• Compatible with most US-made .45 ACP barrels.
• Fits AR-platform pistol-caliber builds.
• Machined from black steel.
• Classified under SilencerCo’s Silencer Accessories product line.
• Weighs approximately 0.05 pounds.

Frequently Asked Questions

What thread pitch does this fit? It is cut to a .578×28 thread pitch, compatible with most US-made .45 ACP barrels.

Do I need this if I don’t own a suppressor? Yes, it protects exposed barrel threads from dust and debris and prevents damage during handling.

Buy the SilencerCo Thread Protector

Keep your threaded .45 ACP barrel protected between range trips with a thread protector from SilencerCo. Browse more compatible accessories in our Class 3 parts and accessories category, and order it from our Lubbock, Texas gun shop for fast shipping.