Our aluminum InterFrame build SF folders share a unique design offering a combination of Carson Series features requested by military procurement specialists. The deep-bellied spear point 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.
M21-14SF Aluminum. Our production aluminum frame SF is based on Kit Carson's custom designs, with contoured handles of black, hard anodized 6061 T6 aluminum, with a perimeter radius. Stainless steel locking liners with friction grooves give positive locking. Blade steel is AUS 8 stainless with a Combined Razor-Sharp and Triple-Point™ Serrated edge.
Blade, frame and hardware are non-reflective tactical black. The blade receives a black titanium nitride coating for maximum corrosion resistance. Kit's trademark dual checkered thumb studs are standard. One-hand opening and closing is quick and smooth.
It also features our automated liner safety. Automated liner safety is the locking liner safety innovation taken to the next level. The automated liner safety sets a pin between the locking liner and the frame. This pin acts as an additional layer of safety, so the locking liner is less likely to disengage during use.
Blade Length: 3.99" (101.35 mm)
Blade Steel: AUS 8
Blade Finish: Titanium Nitride
Blade Thickness: 0.14" (3.56 mm)
Overall Length: 9.25" (234.95 mm)
Closed Length: 5.375" (136.53 mm)
Weight: 5.5 oz. (155.92g)
Style: Folding Knife w/Locking Liner
Blade Edge: Combination