This device is designed to fit threaded muzzles in a variety of sizes and adapt them to the HK style 3 lug mounting system.

We highly recommend using our installation tool to properly install this device. This tool can be found here.

- Your awesome blossom! Thank you guys for being such a pleasure to deal with! I truly appreciate it! ~ K. Fox

- I received the replacement 3 lug adapter and it threaded onto the host barrel by hand perfectly. I’m not sure what changed but whatever you did fixed it! Thank you for the help! ~ Reiss
(Note from Team Liberty regarding the previous: The customer had a barrel with out of spec (large) threads, but we were able to find him a part that was threaded jsut large enough to fit it so he didn't have to return the barrel to the manufacturer.)