Thread Pitch Information

We get a lot of questions about thread pitches and what we use on particular barrels. Glock barrels are available in two types of threads: Suppressor Threads and Compensator Threads. These differ in a few ways. Our suppressor threaded barrels are available in common suppressor adapter pitches like:

1/2×28 for 9mm and .357 Sig

9/16×24 for 10mm and .40S&W

.578×28 for .45ACP

These barrels also have a longer distance between the end of the slide and the start of the threads. This accounts for guide rod interference when using certain suppressors.

Our compensator barrels are threaded:

9/16×32 for 9mm and .40S&W

5/8×32 for 10mm and .45ACP

Using this thread pitch allows us to get the compensator as close as possible to the slide. This wouldn’t work for a suppressor as the guide rod would hit the suppressor. As you can see, these are not interchangeable.

Our M&P barrels are available in the above mentioned suppressor threads as well as Carver comp threads if you plan on using a Carver Custom compensator.

1/2×28 for 9mm and .357 Sig Carver Comp Threads

9/16×24 for .40S&W Carver Comp Threads

KKM Update April 2017

Hello KKM fans!

Things are busy and hectic over here at KKM. Our unprecedented order volume is a good problem to have but lead times have extended dramatically. We ask that you be patient with us as we work to fill your orders and get you shooting. Glock 19’s with compensators (Roland Special) are the most ordered thing right now and thus have the longest lead times currently. Many people are interested in our Black Nitride finish option but wonder why it takes so long. That coating is one of the very few things we don’t do on site and thus we have very little control over how quickly it gets done. We are increasing volume and production to try and catch up with your orders as soon as possible. We take a lot of pride in the craftsmanship of our barrels and because of that they take a little more time to produce than some other methods of production. Again we ask for your patience and apologize for the wait times. Thank you for choosing KKM, we look forward to seeing pictures of your targets with very small groups!!

-KKM Team