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 2112 Armory Drive, Santa Rosa, CA  |  707-542-3100   |

Sten Gun Mini Mini 41cm

The Mares Mini Sten Pneumatic Speargun has been around for quite some time now and is extremely popular for divers who are looking for a compact gun that can be easily stored away. It is a popular pick when choosing an air powered speargun due to it short length of 42cm that is perfect for shallow reef diving. This pneumatic speargun is universally appreciated by all spearfishermen for its accuracy, power, and reliability. The way that this particular pneumatic gun works is by using compressed air which propels the spear out of the barrel. There is a chamber inside the gun that you pump up using the hand pump provided to fill the chamber with air. There is a piston inside the barrel that moves when the spear is loaded and is what pushes the spear out when shot. Having the piston prevent air from escaping when the gun is shot which means that no air is released, giving you multiple shots without having to pump up the gun every time. Depending on how often you use the gun, will depend on how long it will take for more air to be added. 

To load the pneumatic gun, you use a "loader". This comes with the gun when you purchase it and is a small black plastic hand piece. This is held on the tip of the spear and is what you use to push the spear in to the gun against the air pressure. Generally you will use your thigh as the supporter to help push the spear in or the top of your foot depending on the length of the gun. This is just as difficult as loading a standard rubber railgun as you are pushing against lots of pressure. The loader is something that you do not want to loose as if you lose it, you will no longer be able to load your speargun. Here at Dive Warehouse we recommend on always having a spare, so tie some thin rope to your loader and have it connected to your self or your gun to prevent from dropping or loosing it. 


Product Features


  • Powered by air
  • 42cm in length
  • 8mm Threaded Spear
  • 40mm barrel
  • Light weight
  • Plastic Simple loader
  • Operating pressure 13 BAR
  • Compact Head
  • 1.5mm connecting piston
  • Ergonomic Hand grip
  • Comes with holster to strap to your leg
  • Pump included
  • Comes with spear, line, tip and loader

 Care Instructions


  • Rinse with fresh water after every use to remove all sand and sea water
  • Keep rubbers in the freezer if not being used for long periods of time - this slows down the perishing process
  • Remove spear when cleaning and dry throughly before storing
  • Keep in a dry and safe place
  • Store in a speargun bag if possible
  • Do not load out of water
  • Do not rely on the safety catch