The RU3 is designed to make HUB/universally threaded suppressors compatible with HK spec 9mm 3 lugs (HK spec is the standard for nearly all 9mm 3 lugs). This is a perfect solution for mounting 9mm rated suppressors like the Alaskan360, Sub9 or any other HUB/universally threaded suppressor onto subguns and pistol caliber carbines. The primary purpose of the Rugged Universal 3 Lug Mount is to simplify the process of mounting a HUB suppressor to a 3 lug. The RU3 is a bixler style 3 lug mount. A bixler style 3 lug mount utilizes a taper lock instead of spring tension for a stronger and more concentric lock up. This results in rock solid mount for attaching your HUB/universally threaded suppressor to HK spec 3 lugs. *The Rugged Universal 3 Lug Mount is designed for handgun and straight wall calibers. It is not rated for traditional rifle calibers. *The Rugged Universal 3 Lug Mount will not work the the Obsidian45™ or Obsidian9™*
