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Piranha Knives
Piranha Knives machines American automatics from aircraft-grade aluminum — fast, smooth, and unapologetically colorful.
The Excalibur OTF
Piranha's out-the-front dagger runs a 3.25-inch 154CM blade through anodized aluminum in silver, red, blue, green, black — even pink camo. Push-button speed with all-American build quality at prices below most premium OTF rivals.
California craft
Every Piranha is machined and assembled in the USA with action that snaps like a mousetrap and colors that make the display case pop.
Know your laws
OTF and automatic knives are regulated by state — see our Automatic & OTF guide before ordering, and compare the field in automatic knives.
Genuine Piranha, made in USA, brand new stock.
Piranha Knives Auto Virus Button Lock Black P-15BKTS - Automatic Opening CPM S30V Partially Serrated Blade Pocket Knife
Piranha Knives Auto Virus Button Lock Blue P-15B - Automatic Opening With CPM S30V Blade And Sculpted Aluminum Handle
Piranha Knives Auto X Button Lock - Automatic Opening EDC Knife With 3.25in 154CM Blade
Piranha Knives Auto X Button Lock Pink P-14PKT - Automatic Opening Folding Knife With Pink Aluminum Handle
Piranha Knives Auto X Button Lock Green Pocket Knife - Automatic Opening, 154CM Steel Blade, Lanyard Hole
Piranha Knives Auto X Button Lock Green P-14G - Automatic Opening Folding Knife With 3.25in 154CM Blade
Piranha Knives Auto X Button Lock Camo P-14C Automatic Opening Action With 154CM Blade And Lightweight Aluminum Handle
Piranha Knives Auto X Button Lock - Automatic Opening Blue Aluminum Handle With Pocket Clip
Piranha Knives Auto X Button Lock - Automatic Opening EDC Knife With 154CM Stainless Steel Blade
Piranha Knives Auto X Button Lock - Automatic Opening EDC Knife With 154CM Blade And Black Aluminum Handle
Piranha Knives Auto X Button Lock Blue P-14B - Auto Opening Knife With 154CM Stainless Blade And Blue Aluminum Handle
Piranha Knives Auto Predator Button Lock P-10ST - Automatic Opening Tactical Knife with S30V Blade
Piranha Knives Auto Predator Tactical P-10GT - Automatic Opening 4 Inch S30V Blade, Green Textured Aluminum Handle
Piranha Knives Auto Predator Button Lock - Blue Textured Aluminum Handle, CPM S30V Blade
Piranha Knives Auto Predator Button Lock Black CPM S30V 4 Inch Blade - Automatic Opening
Piranha Knives Auto Virus Button Lock Black P-15BKT - Automatic Opening Knife With S30V Blade And Pocket Clip
Piranha Knives Auto X Button Lock Red P-14RT - Automatic Opening EDC Knife With 154CM Blade
$159.85
Piranha Knives Auto X Button Lock Red P-14R - Automatic Opening EDC Knife With 154CM Blade
$147.67
Piranha Knives Auto X Button Lock Pink P-14PK - Automatic Opening 154CM Blade Pink Camouflage Aluminum Handle
Piranha Knives Auto X Button Lock Knife - Automatic Opening Black Partially Serrated 154CM Blade With Aluminum Handle
$164.48
Piranha Knives Auto Predator Button Lock - Automatic Opening, CPM S30V Blade, Red Aluminum Handle
$178.49
Piranha Knives Auto Excalibur OTF P-8S - Automatic Opening Dagger Knife With 154CM Blade And Silver Aluminum Handle
$373.55
Piranha Knives Auto Excalibur OTF P-8R - Automatic Opening 3.25 Inch 154CM Blade Red Aluminum Handle
$373.44