The Dead Air DAIR XEMAX Adapter Hub Pattern 1 3/8-24 is engineered with precision and durability in mind. Featuring Xeno Mounting Technology, this adapter ensures consistent bore alignment and repeatability, making it ideal for big bore calibers like .33 and .45 rifle chamberings. Its robust design, made from 4140HT Chromium-Molybdenum Heat Treated Steel with a nitride black finish, extends the life of your silencer and enhances performance. Perfect for use with the Nomax 33 Silencer, it minimizes ground dust dispersion and reduces felt recoil, offering a superior shooting experience. Dead Air is renowned for its innovative solutions in the firearm industry, ensuring top-notch quality and reliability.