Kimber 1911 magazine extension. Re-finished with the famous "black T" finish from Walter Birdsong. Never used since refinished. No marks, no scratches, excellent condition. If you are not familiar with this finsih it can be found on internet. It is the finish FBI HRT, Border Patrol, Homeland Security, Navy Seals, Rangers, Delta etc. etc etc. have all their guns done in. It is guaranteed never to corode or rust.