The usmc_kbar.rar file you have requested: Clear Sky / Skins / Weapons / USMC K-Bar Knife - 2.92mb is not available. Perhaps try browsing all files for the game S.T.A.L.K.E.R.: Clear Sky and upload any files you want to share or are missing. This is the only information we could locate:
This mod reskins the knife to look like the K-Bar knife used by the USMC.