The load bearing Raptor Buckle is now available for purchase right here from MissionSpec.com before you can get them anywhere else. Available in 4 sizes and two colors (black and coyote). Made out of aluminum and right here in the USA. The load bearing specs on these pieces are quite impressive. Head over to the Raptor Buckles product page for more information.
YouTube link: Raptor Buckles available at MissionSpec.com