SIGMA
Sigma ball bearing flipper knives deliver smooth manual action, solid construction, and modern everyday style. Built with stainless steel blades, secure liner locks, and durable handles, Sigma knives are a quality choice for collectors, outdoor users, resellers, and everyday carry enthusiasts looking for reliable folding knives with premium appeal.
Ball Bearing Folding Knife - Carbon Fiber Handle
Pickup available at 1220 East Belmont Street
Usually ready in 24 hours
Sigma Ball Bearing Tanto Folding Knife
Sigma Ball Bearing Folding Knife -3 1/2" Blade / 4 3/4" Handle / Bearing System / Rainbow
Sigma Ball Bearing Folding Knife - 3 1/2" Blade / 4 3/4" Handle / Bearing System / Grey
Pickup available at 1220 East Belmont Street
Usually ready in 24 hours
Sigma Ball Bearing Folding Knife -3 1/2" Blade / 4 3/4" Handle / Bearing System / Black
Sigma Ball Bearing Blue Flipper Knife
Pickup available at 1220 East Belmont Street
Usually ready in 24 hours
Sigma Ball Bearing Folding Knife
Pickup available at 1220 East Belmont Street
Usually ready in 24 hours
Sigma Ball Bearing Folding Knife
Pickup available at 1220 East Belmont Street
Usually ready in 24 hours
Sigma Ball Bearing Lock Gray Pocket Folding Knife
Damascus Pattern Blade Ball Bearing Folding Knife
Pickup available at 1220 East Belmont Street
Usually ready in 24 hours
Sigma Ball Bearing Knife - 3MM grey titanium blade, 4.5" G10, Ball bearing system
Pickup available at 1220 East Belmont Street
Usually ready in 24 hours
Sigma Gray Ball Bearing Folding Knife - Carbon Fiber Handle
Pickup available at 1220 East Belmont Street
Usually ready in 24 hours
Sigma Carbon Fiber Ball Bearing Folding Knife
Pickup available at 1220 East Belmont Street
Usually ready in 24 hours
Sigma Ball Bearing Folding Knife - Marble Handle & Damascus Blade
Pickup available at 1220 East Belmont Street
Usually ready in 24 hours
Sigma Ball Bearing Folding Knife - Damascus Blade & Sandalwood Handle
Pickup available at 1220 East Belmont Street
Usually ready in 24 hours
Sigma Ball Bearing Folding Knife
Pickup available at 1220 East Belmont Street
Usually ready in 24 hours
Sigma Ball Bearing Flipper Knife
Pickup available at 1220 East Belmont Street
Usually ready in 24 hours
Sigma Ball Bearing Folding Knife
Pickup available at 1220 East Belmont Street
Usually ready in 24 hours
Sigma Ball Bearing Folding Knife
Pickup available at 1220 East Belmont Street
Usually ready in 24 hours
Sigma Ball Bearing Blue Folding Knife
Pickup available at 1220 East Belmont Street
Usually ready in 24 hours
Sigma Ball Bearing Folding Knife -3 3/4" Blade / 4 3/4" Handle / Ball Bearing System / Gray
Pickup available at 1220 East Belmont Street
Usually ready in 24 hours
The Sigma Collection represents the next evolution of modern knife engineering: fast, fluid, and flawlessly reliable. Built around advanced ball bearing pivot systems, these knives open with a smoothness that feels almost unreal—effortless, controlled, and lightning‑quick when it matters most.
Designed for everyday carriers, collectors, and enthusiasts who demand performance without compromise, each Sigma knife blends tactical efficiency, refined craftsmanship, and striking visual appeal. From sleek minimalist profiles to bold, aggressive silhouettes, the collection offers a range of options that feel as good in the hand as they look on display.