MTM said:Barnard action wrench is available from Mark Chesebro. www.chesebrorifles.com
$75 I believe and they are beautiful. Rear entry/steel. 3/4" hex head drive.
Mark is the go-to Barnard gunsmith. He was MT Guns 'smith until they spun that part of their business off a few years ago. He has done all my barrel work for years and always does great work.