What is the best barrel length for 8.6 Blackout?

The best barrel length for the 8.6 Blackout depends on the intended use. However a 12" barrel is generally considered optimal for both supersonic and subsonic performance. But if you are wanting to shoot at longer distances a 16" barrel is preferable, while more compact designs with shorter lengths are also available. At BCA we offer a wide variety of barrel lengths, charging styles, or cerakote colors to select from.