LMT AT Direct Thread Adaptor base brings even more modularity to your ION suppressor. Designed around the industry standardized 1.375" x 24 “HUB” mounting system, the direct thread base makes for an extremely compact profile for users that prefer to run a dedicated suppressed weapon. The Direct Thread Adaptor base is ready to accept 1.375" x 24 barrel pitches and utilizing a 1" outside wrench flat, and an internal 3/4" wrench surface, the user has multiple options for affixing the can and base to the weapon system in restrictive environments. Also available in 1/2 x 28!