Black Oxide Steel Bottle Adapter with Wrench Flats

For sale are quality steel bottle adapters to adapt the most common bottle threads to a variety of common thread types (please select from drop down).  

All adapters are offered with Black Oxide finish - please note that these adapters are for (if under use with anything related to gunsmithing) for cleaning purposes only and NTC Trading Co does not condone their use for any other gunsmithing application.