CRKT - M16-14SF Special Forces Tanto Serrated - Black - Aluminum - AUS-8 - 3.875"Our aluminum InterFrame build SF folders share a unique design offering a combination of Carson M16 Series features requested by military procurement specialists. The dual grind Tanto blades were specified because they offer maximum strength. The open build allows two Carson Flippers to be incorporated, resulting in a true hilt very rare in folding knives. The M16 14SF Big Dog Aluminum is our hefty utility version, with a 3. 875" (98 mm) dual grind