The Dead Air Xemax Adapter is a robust HUB-pattern 1 3/8-24 adapter designed for big bore calibers and optimized for use with the Nomax 33 and Primal suppressors. Engineered with Xeno Mounting Technology, the adapter features a self-aligning taper system that ensures concentric bore alignment and superior repeatability. Built from 4140HT Chromium-Molybdenum heat-treated steel with a nitride black finish, the Xemax Adapter is exceptionally durable and designed to withstand the demands of .33-caliber bolt-action rifles and .45-caliber lever-action or MSR platforms.