Dead Air Armament, Sierra 5 XM, Suppressor, 556NATO, 17-4PH Stainless Steel Construction, Cerakote Finish, Black, Inclueds - KeyMo Adaptor, KeyMo 1/2X28 Flash Hider, TL Tool Pack. Introducing the all-new 5.56 silencer from Dead Air. From the beginning, Deadair's mission has been to take No Quarter in design, performance, and technology. The Sierra-5 stands true to that mission by giving you everything you want out of a dedicated 5.56 silencer. Built for professional use, it offers the perfect balance of overall sound and flash suppression while maintaining a compact footprint and minimal weight. By utilizing HUB compatible (1.375-24) mounting adapters, it can be configured to the end user's specific needs and is available out of the box with either their KeyMo or Xeno mounting system. Featuring the proven winning combination of welded Stellite baffles wrapped in a stainless outer tube, the Sierra-5 boasts a clean and utilitarian knurled design that provides both function and form. WE ARE NOW DOING NFA ELECTRONIC FINGERPRINTING (EFT FILE) & PHOTOS AT THE STORE. WE ARE USING THE ATF'S NEW E-FILE SYSTEM. THIS MEANS YOU SHOULD SEE YOUR TAX STAMP BACK IN ROUGHLY 6-8 months OR LESS ACCORDING TO THE ATF. An appointment will need to be scheduled for this service.