Featuring our own patented design, the Raptor™ buckles are heavy-duty, extra strength quick-release buckles that are constructed of aerospace-grade 7075 aluminum and surprisingly light-weight. ADF-220-58-BLKMade in the USA7075 AluminumInner Adjuster Bar (for belt webbing)Exceeds NFPA 1983 Section 3.2.1.6 (load bearing test)Exceeds MIL-STD-810F (salt spray and blowing sand/dust)MBS Direct Rating: 2,000 lbs MBS Indirect Rating: 4,000 lbs