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American Mechanism Spears with flopper and 2 High Profile Sharkfin Tabs
American Mech High Profile Sharkfin Spear with Flopper

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Spear Length and Thickness


American Mechanism Spears with flopper and 2 High Profile Sharkfin Tabs Over Stock

Because of the abundance of big game in South Africa and the needs of South African hunters, South Africa has become recognized as the leader in the production of the highest quality and strongest spears in the world. Made in South African by a team of engineers in cooperation with local big game hunters, we are pleased to offer the finest spears available.

These AMERICAN MECHANISM spears are built specifically for spearguns with AMERICAN TRIGGER MECHANISMS. The 2 high profile sharkfin tabs enables these spears to be used on spearguns with or without enclosed tracks. The mono attachment hole is located on the rear high profile sharkfin tab.

MAKO Spearguns Carbon Spring Steel spears are arguably the strongest spears on the planet. They are by far stronger than stainless steel spears and by making them with high profile sharkfin tabs, they are even stronger. Spears with sharkfin tabs (built for open muzzle spearguns) are 50% stronger than notched spears. This is particularly important for longer spears. Each spear includes a properly tuned 85cm flopper and tri cut tip for maximum penetration.


  • Heat Treating: Induction hardened and Tempered (IHTW) Cr-Si spring
  • Material: to SAE9254, Grade SHI-200
  • Hardness: Tensile Strength 2030MPa (minimum) to 2060MPa.
  • Size Tolerance: +/-0.05mm
  • Rust Proof Coating: Tested to 3 months x 24 hours per day, salt spray at 32 deg. Cent.

Selecting the proper spear length for your wood speargun or hybrid speargun:

Determining the proper spear length for a wood speargun or hybrid speargun, is different than for a railgun. With a railgun, you just add 40 cm to the length of the barrel.

However, in determining the spear length for American Mechanism Speargun (wood or hybrid), the length of the barrel is not used. Instead, the distance between the back of the trigger mechanism to the front of the speargun is used for calculating spear length. This is because with wood spearguns and hybrids, some have longer “butts” (distance between back of trigger mech to the back of the speargun) than others.

There is no universal standard for selecting the proper spear length for an American Mechanism Speargun (hybrid speargun or wood speargun). Some guys like a short overhang of around 10 inches, while others like a longer overhang of up to 15”. The average appears to be around 12” of overhang.

To determine the suggested length of spear for your American Mechanism speargun:

  • Step #1: Determine the point where the back of the spear is located when it is engaged in the trigger mechanism.
  • Step #2: Measure from this point to the front of the speargun.
  • Step #3: Then add approximately 12 inches the previously obtained measurement. This will give you a suggested spear length with a 12 inch overhang. If you want a slightly shorter overhang, you can add less than 12 inches. If you want a longer overhang, you can add more then 12 inches.

NOTE: (Threaded Shafts w/ Slip Tips) In selecting the proper length of a threaded spear (for slip tips), you will add only 6 inches of overhang instead of 12 inches to get a 12 inch overhang. This is because the slip tip (with the adapter) is normally around 6 inches long. So, the threaded spears are about 6 inches shorter than flopper spears.
Example: A 58” threaded spear with a 6” slip tip (including adapter) makes for a 64” spear.

Average Customer Review: Average Customer Review: 5 of 5 5 of 5 Total Reviews: 4 Write a review.

  0 of 0 people found the following review helpful:
5 of 5 December 13, 2019
Reviewer: Paul Dopwell from Port of Spain, Trinidad & Tobago  

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  0 of 0 people found the following review helpful:
5 of 5 Quality December 13, 2019
Reviewer: chad mathis from Crandall, TX United States  
Not only is the craftsmanship on the spears excellent the floppers are precisely tune to saving me lots of trouble that I have to do with almost every other spear I buy

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  0 of 0 people found the following review helpful:
5 of 5 Love these Mako Floppers July 19, 2017
Reviewer: MWM III from Lynn Haven, FL United States  
I lose one, and I order three more just to be safe.  I like these that much.

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  0 of 0 people found the following review helpful:
5 of 5 The Old Billy Baroo January 28, 2017
Reviewer: MWM III from Panama City, FL United States  
These are good spears. Maybe the best I found. Top notch, top-notch!

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