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Ball Bearing Folding Knife - Carbon Fiber Handle 
Ball Bearing Folding Knife - Carbon Fiber Handle
Ball Bearing Folding Knife - Carbon Fiber Handle
KS5001BBK$8.50 USDSale price $8.50 USD Regular pricePickup available at 1220 East Belmont Street
Usually ready in 24 hours
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Sigma Ball Bearing Tanto Folding Knife 
Sigma Ball Bearing Tanto Folding Knife
Sigma Ball Bearing Tanto Folding Knife
KSBM029$21.50 USDSale price $21.50 USD Regular pricePickup available at 1220 East Belmont Street
Usually ready in 24 hours
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Sigma Ball Bearing Folding Knife -3 1/2" Blade / 4 3/4" Handle / Bearing System / Rainbow 
Out of StockSigma 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 / Rainbow
KS3065RB$8.25 USDSale price $8.25 USD Regular price -
Sigma Ball Bearing Folding Knife - 3 1/2" Blade / 4 3/4" Handle / Bearing System / Grey 
Sigma Ball Bearing Folding Knife - 3 1/2" Blade / 4 3/4" Handle / Bearing System / Grey
Sigma Ball Bearing Folding Knife - 3 1/2" Blade / 4 3/4" Handle / Bearing System / Grey
KS3065GY$8.25 USDSale price $8.25 USD Regular pricePickup available at 1220 East Belmont Street
Usually ready in 24 hours
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Sigma Ball Bearing Folding Knife -3 1/2" Blade / 4 3/4" Handle / Bearing System / Black 
Sigma Ball Bearing Folding Knife -3 1/2" Blade / 4 3/4" Handle / Bearing System / Black
Sigma Ball Bearing Folding Knife -3 1/2" Blade / 4 3/4" Handle / Bearing System / Black
KS3065BK$8.25 USDSale price $8.25 USD Regular pricePickup available at 1220 East Belmont Street
Usually ready in 24 hours
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Sigma Ball Bearing Blue Flipper Knife 
Out of StockSigma Ball Bearing Blue Flipper Knife
Sigma Ball Bearing Blue Flipper Knife
KSB345CBL$8.25 USDSale price $8.25 USD Regular price -
Sigma Ball Bearing Folding Knife 
Sigma Ball Bearing Folding Knife
Sigma Ball Bearing Folding Knife
KSB382BK$8.50 USDSale price $8.50 USD Regular pricePickup available at 1220 East Belmont Street
Usually ready in 24 hours
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Sigma Ball Bearing Folding Knife 
Sigma Ball Bearing Folding Knife
Sigma Ball Bearing Folding Knife
KSB348BK$8.50 USDSale price $8.50 USD Regular pricePickup available at 1220 East Belmont Street
Usually ready in 24 hours
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Sigma Ball Bearing Lock Gray Pocket Folding Knife 
Out of StockSigma Ball Bearing Lock Gray Pocket Folding Knife
Sigma Ball Bearing Lock Gray Pocket Folding Knife
KSB112GFB$7.50 USDSale price $7.50 USD Regular price -
Damascus Pattern Blade Ball Bearing Folding Knife 
Damascus Pattern Blade Ball Bearing Folding Knife
Damascus Pattern Blade Ball Bearing Folding Knife
KSBM037B$23.95 USDSale price $23.95 USD Regular pricePickup available at 1220 East Belmont Street
Usually ready in 24 hours
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Sigma Gray Ball Bearing Folding Knife - Carbon Fiber Handle 
Sigma Gray Ball Bearing Folding Knife - Carbon Fiber Handle
Sigma Gray Ball Bearing Folding Knife - Carbon Fiber Handle
KSB382GY$8.50 USDSale price $8.50 USD Regular pricePickup available at 1220 East Belmont Street
Usually ready in 24 hours
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Sigma Carbon Fiber Ball Bearing Folding Knife 
Sigma Carbon Fiber Ball Bearing Folding Knife
Sigma Carbon Fiber Ball Bearing Folding Knife
KSB504BBK$8.50 USDSale price $8.50 USD Regular pricePickup available at 1220 East Belmont Street
Usually ready in 24 hours
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Sigma Ball Bearing Folding Knife - Marble Handle & Damascus Blade 
Sigma Ball Bearing Folding Knife - Marble Handle & Damascus Blade
Sigma Ball Bearing Folding Knife - Marble Handle & Damascus Blade
KSBM032W$29.95 USDSale price $29.95 USD Regular pricePickup available at 1220 East Belmont Street
Usually ready in 24 hours
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Sigma Ball Bearing Folding Knife - Damascus Blade & Sandalwood Handle 
Sigma Ball Bearing Folding Knife - Damascus Blade & Sandalwood Handle
Sigma Ball Bearing Folding Knife - Damascus Blade & Sandalwood Handle
KSBM019W$29.95 USDSale price $29.95 USD Regular pricePickup available at 1220 East Belmont Street
Usually ready in 24 hours
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Sigma Ball Bearing Folding Knife 
Sigma Ball Bearing Folding Knife
Sigma Ball Bearing Folding Knife
KSB348BD$8.50 USDSale price $8.50 USD Regular pricePickup available at 1220 East Belmont Street
Usually ready in 24 hours
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Sigma Ball Bearing Flipper Knife 
Out of StockSigma Ball Bearing Flipper Knife
Sigma Ball Bearing Flipper Knife
KSB345CBW$8.25 USDSale price $8.25 USD Regular price -
Sigma Ball Bearing Folding Knife 
Sigma Ball Bearing Folding Knife
Sigma Ball Bearing Folding Knife
KSBM015G$29.95 USDSale price $29.95 USD Regular pricePickup available at 1220 East Belmont Street
Usually ready in 24 hours
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Sigma Ball Bearing Blue Folding Knife 
Sigma Ball Bearing Blue Folding Knife
Sigma Ball Bearing Blue Folding Knife
KSB348BL$8.50 USDSale price $8.50 USD Regular pricePickup available at 1220 East Belmont Street
Usually ready in 24 hours
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Sigma Ball Bearing Folding Knife -3 3/4" Blade / 4 3/4" Handle / Ball Bearing System / Gray 
Sigma Ball Bearing Folding Knife -3 3/4" Blade / 4 3/4" Handle / Ball Bearing System / Gray
Sigma Ball Bearing Folding Knife -3 3/4" Blade / 4 3/4" Handle / Ball Bearing System / Gray
KSB111GY$8.50 USDSale price $8.50 USD Regular pricePickup 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.
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