Also that model of knife sheath is sold by itself, it’s not tied to any specific model or even brand of knife. I mean, you can buy it separately, but it is designed to hold the 7-inch Kabar knife, and they are sold as sets, such as here: https://www.amazon.com/KA-BAR-Marine-Corps-Fighting-Straight/dp/B001H53Q6M/ref=sr_1_1?crid=NV987S9RULZ4&dib=eyJ2IjoiMSJ9.-KsdrIgcjPpKhrLtPZTaeKOcd7lzNlqjmHnmw2dLV8pcQV9G5Lm0LZ8cST63OK8UQE_P8_n-LZ_-7mEecLV-uo2uV3RC4eAAjwYqZkog36IWc2sp1bkJkO-UYErmU92T5FuQeyqOSNOUGt5n2DOYlKDvWZhZD7fAoDYjdi5YtHVtp2xngwPMpE9LsWB1kQc8A3hupCFeuDIHOELwLRQ6dpQzwIq_pvGFKvyQRcGxGnzqambVJgtP4sB4sJ55faYRLFjWryak-pTP_ior3FDRrVFn2igPB6A1BcyJ_PfMHiY.b406DVa84whyhB4lPCTLxetTuk76Aj-AZBiDIBGSkiI&dib_tag=se&keywords=kabar+sheath+and+knife+us+marines&qid=1781905369&sprefix=kabar+sheath+and+knife+us+marines%2Caps%2C105&sr=8-1 But the sheath was found at the crime scene. You wouldn't have to track down every possible knife that could fit if you could simply track down a person who bought the sheath. No matter what knife fit in it.
