Mares Sten Pneumatic Speargun Shaft 43163961 041279

Mfg Part #: 431639

Mares Sten Pneumatic Speargun Shaft

Sten 100 Stainless Add $16.00
Sten Medi Stainless Add $8.00
Sten Mini Stainless Add $4.00
  • Harmonic Staingless Steel Shaft (8mm diameter/7mm male threads)
  • Will only work with
    • Sten MiniMini
    • Sten Mini
    • Sten Medi
    • Sten Long
    • Sten 100

Customer Reviews for Mares Sten Pneumatic Speargun Shaft:

See the top 20 most helpful scuba gear reviews

Average Customer Review: based on 1 reviews.

Rating: Perfect Spare
Reviewer: Daniel S.  -  View all my reviews
I was having a hard time finding this spear shaft until I saw it on It was a perfect match for the spear that came with the gun so now Im set with a spare for any unforseen problems. Thanks for the great service and product.

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Questions and Answers for Mares Sten Pneumatic Speargun Shaft:

  • terry:

    i want a true stainless steel replacement shaft for a Mares Frontiersman speargun that wont rust, which is the right one?

    Darrick  (Certified Scuba Instructor at

    Hello Terry, all stainless steel will rust, Right now Mares does not make there tempered Inox shafts for there Sten line of guns. If you have any other questions or would like to place an order please feel free to give us a call at 1.800.347.2822.

  • randy:

    Im looking for a complete shaft assembly replacement for a Mares Shortie, and Im not sure what to order. thanks

    Darrick  (Certified Scuba Instructor at

    Hello Randy, no knowing which spear gun shaft length you need. You would need to contact the manufacture directly at 800.874.3236 they would be able to help you find the correct shaft for your gun.

  • Gunner:

    i need 8mm replacement shaft with 7 mm male treads.. its for a mares californian pneumatic. i think it is a 34.5" shaft please advise.. do u have those shafts available? i need complete set up.. spring, line adapter and mares shaft adapter that goings into gun.

    Bill  (Certified Scuba Instructor at

    You might want to contact Mares to get the correct part number for the shaft. Mares technical questions: 800-874-3236

  • Julio:

    I have a Salvimar 100 VintAir Plus for which Im trying to find a replacement for the back piece of the shaft itself. When I refer to the back piece is the part that goes threaded to the shaft in the back that holds the shaft inside the gun when loaded. I went to a local store in Miami and they advised that the Mares Sten Shaft will match the one Im looking for. What is your recommendation on this and where can I find the piece that Im looking for. Also, will this Mares Sten 100 Shaft work with this speargun?

    Darrick  (Certified Scuba Instructor at

    Hello Julio, you would need to contact the manufacture directly to see if that shaft would work for your spear gun. You can contact Mares directly at 800.874.3236

  • Tarek:

    what is the shaft (only the shaft) length for Mares sten mini (58cm)?

431639 - Shaft for Sten/Jet

Ø8mm STEN/JET Stainless steel.

Collection: 43163957: minimini 43163958: mini 43163959: medi 43163990: long 43163961: super

43163957: minimini
43163958: mini
43163959: medi
43163990: long
43163961: super

Code: 43163957

13mm internal barrel: The 13mm internal barrel can use either 7mm or 8mm shafts.

The simple but sturdy design and construction makes the speargun highly reliable. Mares is constantly working to develop new products for every usage level, from beginner to professional.

Available for shipment only to the United States, Canada and Caribbean addresses

View all Mares Spearguns

Choose Currency:, 1752 Langley Avenue, Irvine CA 92614

US and Canada 800.347.2822
International 001.949.221.9300