JBL Explorer 20 Single Sling Spear Gun (4D20),

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Your Price:

$162.00 You save: $18.00 (10%)

List : $180.00

JBL : Picture 1 regular $162.00

About JBL Explorer 20 Single Sling Spear Gun (4D20),

If you're looking for a speargun that's big on performance while still leaving a little green in your wallet, the Explorer is perfect. Same quality as the Magnum Series: hardened stainless trigger and shaft, cast aluminum, two piece handle, but combined with a 1" aerospace alloy barrel for quick target acquisition and fatal results. Same parallel power source and low profile design make the Explorer perfect for cagey fish when the shot window is a split second

Warranty Information

This product has a limited warranty of 12 months.

(800) 325-3083

JBL Explorer 20 Single Sling Spear Gun (4D20), Features

  • Hardened 17-4 spring stainless steel shafts.
  • 300 Series stainless steel points and slide rings.
  • Hardened 17-4 spring stainless steel trigger and sear.
  • Handles and muzzles made of aircraft-quality aluminum, anodized and finished with an epoxy system for double protection.
  • A second sling may be added for extra power.
  • Latex sling with 302 stainless wishbone
  • Twin Barbed Rock Point
  • Shock Line

JBL Explorer 20 Single Sling Spear Gun (4D20), Specifications

Total Length
28.50 Inches.
Shaft Length
24 Inches. (0.61 Meters)
Sling Length
14 Inches. (0.36 Meters)
Shaft Diameter
5/16" (8 Mm)
Sling Diameter
9/16" (16 Mm)
Number Of Slings
1 Black 9/16" Diameter X 14"
Single Barb #825
12 Feet (3.66 Meters)
Barrel Anodized Aluminum, Handle: Cast Aluminum, Shaft: 17-4 Spring Steel, Tip & Wishbone: 303 & 302 Stainless Steel, Sling: Latex
Weight [with packaging]
1.75 lb
Mfr #

Explorer 20 Single Sling Spear Gun (4D20), Customer Reviews

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by PowerReviews

(based on 1 review)

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Reviewed by 1 customer

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ok gun if you don't know any better

By Andrew the Fish

from BC Canada

See all my reviews


  • nice blue colour


  • low power, no aiming aids

Best Uses

  • small dish at point blank
  • Wall Display

I purchased this gun because my older pneumatic gun Cressi SL Star shaft broke. I needed replacement gun quickly and our local dive shop did not carry anything else but this JBL 20. I also bought additional sling because I figured I might need it.

First of all, with one sling this JBL 20 does not have power to penetrate even smaller surf perch at 9 feet. Now, if you add one more sling, it gets only marginally better. Since both slings are using the same channel they are obstructing each other and second sling may be touching the shaft if not properly lined up.

Another big problem is that the line of sight is obstructed with loading pad and slings. And there are no aiming provisions, no rear slot or front pin to line up. I cannot properly aim this gun for anything over 1 ft away. I just had my first session yesterday and kept on missing time after time. Frustrating. My understanding that this is a non issue for more experienced spearos. But, this gun is marketed as beginner's gun. Low power means smaller fish, which requires accurate shot placement, which is not there.

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Questions & Answers Powered by TurnTo®

Questions about this item:

Shopper  Why Did You Choose This?
BRAIDY P  great gun, little short but all around works great!
Shopper  Is the gun silver like in the picture or blue like all the new ones on other sites?
LeisurePro S  Yes, this is an older picture--the newer models are blue.
Shopper  What does this gun come with? Does it come with a spear?
LeisurePro S  Yes. It comes complete with a shaft, sling and spear point: Shaft Length 24 inches. (0.61 meters) Sling Length 14 inches. (0.36 meters) Shaft Diameter 5/16" Sling Diameter 9/16" Number of Slings 1 Black 9/16" diameter x 14" Spear point Single Barb #825
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