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Product Information
The Mares S-Power Sling Speed Circular 17.5mm is a circular rubber band accessory for spearguns. It has a 17.5 mm diameter rubber band paired with an interchangeable 2 mm Dyneema ogive (wishbone), and it is offered in five lengths, 42, 48, 55, 65, and 70, so you can match the band to your speargun.
Who it is for
This sling is for spearfishing divers who own a speargun with a 17.5 mm diameter barrel and need to replace a worn band or set up a backup sling. Because the ogive is interchangeable, it also suits divers who like to maintain their own rig and swap the wishbone without replacing the whole band assembly.
Key details
- Diameter: 17.5 mm circular rubber band
- Ogive: 2 mm Dyneema, interchangeable
- Materials: rubber (latex) band with a Dyneema ogive/cord
- Available lengths: 42, 48, 55, 65, and 70
Compatibility and sizing
This sling is designed for spearguns with a 17.5 mm diameter barrel. Select the length that matches your current band or the length recommended for your specific speargun model to maintain proper loading and power.
DiveCatalog.com is an authorized Mares dealer and has been a dive shop in Irvine, California since 2003. Call or chat with us at 888-701-4017 if you need help confirming the correct length or diameter for your speargun.
- 17.5 mm diameter: Circular rubber band sized for spearguns with a 17.5 mm diameter barrel.
- Interchangeable ogive: Comes with a 2 mm Dyneema ogive (wishbone) that can be swapped without replacing the whole band.
- Circular band design: Built as a circular rubber band for spearguns.
- Rubber construction: Made from a latex rubber band.
- Dyneema ogive cord: Uses a 2 mm Dyneema ogive/cord.
- Five length options: Available in 42, 48, 55, 65, and 70.
| Brand | Mares |
| Product Type | Speargun Sling / Circular Band |
| Diameter | 17.5 mm |
| Ogive | 2 mm Dyneema (interchangeable) |
| Band Material | Rubber (latex) |
| Ogive Material | Dyneema |
| Available Lengths | 42, 48, 55, 65, 70 |
| Compatibility | Spearguns with 17.5 mm diameter barrel |
| MPN | 42396042 |
⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Frequently Asked Questions
What length of Mares S-Power Sling Speed Circular should I buy?
The sling is available in five lengths: 42, 48, 55, 65, and 70. Choose the length that matches your current band or the length recommended for your specific speargun model with a 17.5 mm diameter barrel to maintain proper loading and power. If you are unsure, compare it to your existing band or contact us for help.
Is the Mares S-Power Sling Speed Circular compatible with my speargun?
This sling has a 17.5 mm diameter and is designed for spearguns with a 17.5 mm diameter barrel. If your speargun barrel matches that diameter, this circular band will fit; if not, you will need a different diameter sling.
Can I replace the ogive on this sling?
Yes. The Mares S-Power Sling Speed Circular 17.5mm comes with an interchangeable 2 mm Dyneema ogive (wishbone), so you can swap it out as it wears without replacing the entire rubber band.












