I have been given this knife to repair, I did not want to take it on due to amount of missing parts, but the father that gave it to me to fix explained it was from his sons personal effects after having been killed in Afghanistan by an IED, and began to tear up, I couldn’t say no. Anyway I have been searching eBay to just buy another one and use the parts form that to re-build this one, but I cannot find one and I do not know what it is called, I am posting a picture so that hopefully someone here can help in my search for parts. Thank you for looking and hopefully helping, Ed