Greetings. I am in Canada, and aside from the T3's I can't find anyone familiar with these m558. This is in .223 and in amazing condition. Took my first coyote with it recently. Anybody have an idea of its value? I am considering moving it for a different caliber, but have no idea its value. I purchased it at a garage sale. Thank you. Any input is appreciated. I found the history and ideology of this firearm on this site, very helpful.