ST-3A® Thread Sealant

This is hands down the best anti-walk remedy for pistol silencers there is. It is the only thing that actually worked for me to prevent walking enough I could get through a whole mag repeatedly. It acts kind of like teflon tape in practice but way better. With teflon tape I would still get the can to walk after only 3-4 shots. With this, I routinely get through my entire magazine with no or minimal walk. Enough I consider the issue resolved - can't recommend highly enough!

Excellent product and easy to use. It works best for modular suppressors that breaks into two as well as end caps. No more baffle strikes! If you are reading this, don’t hesitate get it! Don’t wait like I did. This stuff really works!

Appears to be just what I needed for my barrel/mini comp combo. Haven’t shot it yet but I suspect it’s going to hold up. The little jar has ALOT of applications in it so if I have to reapply a few times a year is no big deal.

Little goes a long way.

Good for areas where you want to eliminate loosening but threadlocker is not appropriate. I've taken to using it on threaded areas where there's a portion of exposed threading subject to carbon and lead deposits. As an example, there are variations in the length of threads on barrels such as found on a 22 pistol, 22/223 rifle, and some silencers like the Silencerco Sparrow. A very light application of this goop in those areas helps keep fouling out of the 1/2x28 threads and away from the o-rings, which are often hard to reach with a pick or brush. Anything you can do to reduce the painstaking and tiresome cleaning required for dirty calibers like 22LR is a good thing.

This stuff is amazing. Put it on your pistol barrel threads and your silencer will NOT back off!

Have not had time to test it under use; but upon initial application, it appears to do just exactly what it's advertised to accomplish.

Amazing wonder sauce! Put this on my threads and allowed it to dry for a couple hours... threaded it in and it basically acts as a O ring style elasto polymer gasket. Locks out the carbon and it stays in place for multiple install/disasembly operations. Great product for keeping threaded parts clean, snug, and easily serviceable in the future.

It works great

works great