Mares Sten

The Sten spearfishing speargun is a pneumatic speargun with 13mm barrel . Ergonomic handle and ultra light and compact head, greatly improving buoyancy and hydrodynamics.
Reinforced ogive with steel wire pass and ultra-light compact head, for better buoyancy and hydrodynamics. The 13mm inner barrel allows you to use 7mm and 8mm rods.
The main features of the Sten pneumatic speargun are:

40 mm outer barrel 
Lightweight one-piece muzzle 
13 mm inner barrel 
Reinforced spinner with steel line guide 
Ergonomic handle with white grip for greater visibility 
8 mm threaded rod