The SilencerCo Thread Protector for .578×28 barrels (SilencerCo part no. AC1361) keeps your muzzle threads crisp and protected whenever a suppressor is not mounted. Thread protectors are most often used on handguns, where a suppressor may not be able to stay on while the pistol is holstered. This one is cut to the .578×28 pitch, a thread commonly used on .45 ACP pistol barrels. It also helps in gun cases, in the safe and while carrying.

Key Specifications

• The thread pitch is .578×28, which has to match the barrel it covers.
• Its job is to protect the muzzle threads from nicks and debris.
• It is used when the suppressor is not mounted, such as when a pistol is holstered.
• It also protects the threads in a gun case or safe.
• The pitch is commonly used on .45 ACP pistol barrels.

Frequently Asked Questions

What barrels does the .578×28 protector fit? Barrels threaded .578×28, a pitch commonly used on .45 ACP pistol barrels.

When do I use a thread protector? Whenever a suppressor or muzzle device is not attached, so the threads are not damaged in a holster, case or safe.

Is there a 1/2×28 version? Yes. SilencerCo also makes a thread protector in 1/2×28.

Buy the SilencerCo Thread Protector for .578×28 Barrels

A thread protector is the cheapest part of a suppressor setup and the one that saves barrel threads. Order the .578×28 version from our Lubbock, Texas gun shop for fast, insured shipping, and see more suppressor parts and accessories while you are here.