There are a few guys who specialize in K98k Mausers and other German WWII and WWI rifles. I started my collection in about 1970 when I was 14 and have just kept at it over the years. Generally, one or two come my way every year or two. I think I have about 50-60 matching pieces in the collection now.

My friend Scott Benedict (www.pre98.com) has a few on his website, but they are not cheap.