Here it is. Crown&Buckle leather nato, 22mm, dark brown (not the color I linked). Looks like they are pretty low on 18mm Nato selection. But then again just google 18mm leather nato and check out the options. There are leather natos from like $15 all the way up to like $300, hand made out of crazy special leathers and shit.
10/30/12 at 12:22pm