Simon - I only have one NMFBM, but I made two sheaths. One is a simple leather sheath weighing 7 ounces, the other is heavier (13ozs.) with two straps on front for mounting kits, small knives, etc. and on the back I put an X-type strap for different carries. There is a paracord leg tie-down as well. <img src="/ubbthreads/images/graemlins/grin.gif" alt="" />