The SilencerCo Delta Stormproof Thread Protector 1/2×28 is a Delta Stormproof thread protector from SilencerCo, built to 1/2×28 spec. SilencerCo machines it (SilencerCo part no. AC6) to factory tolerances rather than as a generic aftermarket stand-in. It threads onto an exposed muzzle to protect the barrel’s external threads from dings, dirt, and corrosion whenever a suppressor or muzzle device is not mounted. A bare threaded muzzle is an easy way to buff a thread crest or let grit into the threads, and a low-profile protector keeps that interface ready for the next time a can goes on. It is a practical pickup for a range bag or armorer’s bench that needs the correct part on hand before the next build.

Key Specifications

• 1/2×28 thread pattern matches barrels or mounts cut to that pattern, so it fits without an extra adapter.
• .22 LR identifies the host caliber this part is sized for.

Frequently Asked Questions

What thread does this protector fit? It threads onto a 1/2×28 muzzle to cap the exposed threads when no suppressor or device is mounted.

Do I need a thread protector if I already own a suppressor? Yes, whenever the can is off the gun the exposed threads are unprotected, and a protector keeps them from getting dinged or dirty between range trips.

What caliber is this part built for? It is sized for .22 LR; running it on a different caliber host is not something the manufacturer specifies as safe or correct.

Buy the SilencerCo Delta Stormproof Thread Protector 1/2×28

Order the SilencerCo Delta Stormproof Thread Protector 1/2×28 directly from Schaefer Defense and get it moving toward your bench today. Ships fast from our Lubbock, Texas gun shop, direct to your door with no FFL required. Check out the rest of our gunsmithing tools lineup for the other small parts that keep a suppressor setup running right.