Piranha Amazon Automatic Knife Silver (3.45" Mirror)


  • Blade is mirror finished with a plain cutting edge.
  • Push button opener for snappy deployment.
  • Silver anodized handle with black hardware.
  • Pocket clip for a tip-up carry.


Piranha's Amazon is another awesome automatic knife with hard-hitting action, so you'll need to hold on tight! The 6061-T6 aluminum handles have grip grooves and a steel pocket clip. The 154-CM stainless steel blade has a great profile and masterfully integrated holes below the spine.

Go to more automatic knives and shop there!

Item #BHQ-1780
MSRP: $180.00
Our Price: $159.95
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  • Overall Length: 7.875"
  • Blade Length: 3.50"
  • Cutting Edge: 3.50"
  • Blade Thickness: 0.12"
  • Blade Material: 154CM
  • Hardness: 60-61 RC
  • Blade Style: Drop Point
  • Blade Grind: Flat
  • Finish: Mirror
  • Edge Type: Plain
  • Handle Length: 4.375"
  • Handle Thickness: 0.43"
  • Handle Material: Aluminum
  • Color: Gray
  • Weight: 3.00 oz.
  • User: Right Hand
  • Pocket Clip: Tip-Up
  • Knife Type: Automatic
  • Opener: Push Button
  • Lock Type: Button Lock
  • Brand: Piranha
  • Model: Amazon
  • Model Number: P-3S
  • Country of Origin: USA
  • Best Use: Everyday Carry
  • Product Type: Knife

Customer Reviews

Piranha thunder click
David K. on May 15, 2022

I’ve had a Fingerling for 15-20 years now and it’s unfailingly stout. I decided at the price point I’d try a 3.5” blade. Excellent choice. Just over a hundred bucks I will EDC this blade with reckless abandon. It is so wicked fast, the TWINK it pronounces to open is ear catching. The pop in your hand lets you know these springs are heat treated to perfection just like the 154CM. Speaking of the steel the MIRROR polish is not mirror. They always do a exemplary job polishing the old school way but unlike earlier releases this is more stonewashed than mirror. Discrete man jewelry is always classy. Definitely worth the penny!

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