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$216.00

About JBL 31" (79 cm) Magnum Custom Double Sling Spear Gun (4D33)

The spear gun design that started it all, the JBL Magnum series of guns is probably responsible for more speared fish than all other spear guns combined. It's no wonder; as this durable and accurate workhorse features a 1 1/4" (3.2 cm) drawn alloy barrel, corrosion resistant hardened stainless steel trigger, shaft and point. The JBL724S shaft is made from 17-4 spring stainless for durability and long life shaft is 24" (61 cm) in length with a 5/16" diameter. Handles are constructed of two-piece cast aluminum providing strength and ease of maintenance. The Guns overall length is 31" (79 cm).

The Magnum Custom features two 9/16" Hi-Mod JBL214 bands with 302 stainless wirewishbones, one hand safety, and trigger operation. The JBL825 Single Barb Point is an economical point for small to medium fish. The Tip is constructed of rugged stainless steel, JBL fixed Spear Points are a perfect blend of durability and performance. Each point is designed for low maintenance, dependability and most important results.

The Gun is equipped with the JBL515 Shock Line. Sometimes we miss or we shoot a large fish and the recoil can pull the gun out of your grip, which ever the shock line will keep you in control. The Guns range is 12' (3.66 meters). Tried and trusted this is one hunting buddy you'll be glad to share a secret spot with. These guns are most suitable for spear fishing among reefs and rocks where heavy penetration is needed but range is not critical. The Gun is totally made in the USA.

Click below for more information
JBL Spearguns Use and Care Instructions
JBL Spearguns Maintenance and Repair Instructions

The JBL 31" (79 cm) Magnum Custom Double Sling Spear Gun (4D33) is commonly used for Close To Shore, Cold Water, Large Prey, Open Water, Small Prey, Warm Water and more. The JBL 31" (79 cm) Magnum Custom Double Sling Spear Gun (4D33) is most used by customers who consider themselves to be a Advanced Diver, Beginner, Recreational Diver among others. The JBL 31" (79 cm) Magnum Custom Double Sling Spear Gun (4D33) is popular because customers like the following qualities of the JBL 31" (79 cm) Magnum Custom Double Sling Spear Gun (4D33): Accurate, Durable, Fast, Good Range, Lightweight, Low Recoil.

Warranty Information

This product has a limited warranty of 12 months.

www.jblspearguns.com
(800) 325-3083

JBL 31" (79 cm) Magnum Custom Double Sling Spear Gun (4D33) Features

  • Hardened 17-4 spring stainless steel shafts, triggers & sears
  • Hardened 303 spring stainless steel spear point
  • Handles made of aircraft quality aluminum, anodized and finished with an epoxy system for double protection.
  • One-hand safety & trigger operation.
  • Shock absorber shock line.
  • Exclusive JBL tru-glide system.
  • Totally made in the USA.
  • Latex sling with 302 stainless wishbone

JBL 31" (79 cm) Magnum Custom Double Sling Spear Gun (4D33) Specifications

Total Length
31 Inches. (0.79 Meters)
Shaft Length
24 Inches. (0.61 Meters)
Sling Length
14 Inches.
Shaft Diameter
5/16 Inches.
Sling Diameter
16 Inches
Number Of Slings
2 Black 1/2" Diameter X 14"
Spearpoint
Single Barb #825 Stainless Steel
Range
12 Feet
Floatation
No
Material
Barrel Anodized Aluminum, Handle: Cast Aluminum, Shaft: 17-4 Spring Steel, Tip & Wishbone: 303 & 302 Stainless Steel, Sling: Latex
Weight [with packaging]
2.25 lb

31" (79 cm) Magnum Custom Double Sling Spear Gun (4D33) Customer Reviews

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JBL 31" (79 cm) Magnum Custom Double Sling Spear Gun (4D33)
 
4.4

(based on 38 reviews)

Ratings Distribution

  • 5 Stars

     

    (18)

  • 4 Stars

     

    (18)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

94%

of respondents would recommend this to a friend.

Pros

  • Lightweight (32)
  • Accurate (30)
  • Durable (24)
  • Good range (22)
  • Fast (21)

Cons

  • Poor range (5)
  • Hard to use (3)

Best Uses

  • Close to shore (22)
  • Cold water (17)
  • Small prey (17)
  • Warm water (16)
  • Open water (15)
    • Reviewer Profile:
    • Advanced diver (12), Recreational diver (10), Beginner (5)
    • Was this a gift?:
    • No (3)

Most Liked Positive Review

 

great gun

I dive for abalone and spear fish in north CA, and this gun is great anything from small sea trout to ling cod and halibut, one down side the metal ring on the spear...Read complete review

I dive for abalone and spear fish in north CA, and this gun is great anything from small sea trout to ling cod and halibut, one down side the metal ring on the spear that fits into the end of the gun, if your tip gets unscrewed you will loose it, but still a great gun.

VS

Most Liked Negative Review

 

You get what you pay for

This was the first gun I bought. It did not work right from day one. I had been using my friends AB-Biller and the two guns do not compare. Very inaccurate and very...Read complete review

This was the first gun I bought. It did not work right from day one. I had been using my friends AB-Biller and the two guns do not compare. Very inaccurate and very noisy underwater. After one shot, all the other fish leave the area because of the noise it makes. I would recomend AB-Biller or OMER.

Reviewed by 38 customers

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Displaying reviews 1-5

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4.0

Trigger unhappy

By Will

from Lewes, DE

About Me Advanced

Verified Buyer

Pros

  • Accurate
  • Lightweight
  • Maneuverability

Cons

    Best Uses

    • Low Visibility
    • Small Prey
    • Tight Wrecks

    Comments about JBL 31" (79 cm) Magnum Custom Double Sling Spear Gun (4D33):

    Works well off of OC/Delaware. Dive a lot of wrecks and gun maneuvers easy in tight spots. Vis is limited so reach is less important. The common complaint for the gun is the trigger mechanism. I have had a few instances where the trigger sticks and I clean relentlessly. Give me a double band any day

    • Was this a gift?:
    • No

    Comment on this review

     
    5.0

    Another Great Spear Gun form JBL!

    By WilSea

    from Fort Bragg, CA

    About Me Casual/ Recreational

    Verified Buyer

    Pros

    • Accurate
    • Compact Length
    • Durable
    • Intuitive Design
    • Well Balanced

    Cons

    • Poor Range

    Best Uses

    • Close To Shore
    • Cold Water
    • Moderate Sized Prey
    • Rock Garden Hunting
    • Small Prey

    Comments about JBL 31" (79 cm) Magnum Custom Double Sling Spear Gun (4D33):

    I am an avid Lost Coast (Nor Cali Ocean) kayaker, snorkeler and free diver and hunt in the rock gardens for Ling, Cabizone, Greenlings, etc. I find the shorter length of the gun easier to maneuver in the rocky environment than the longer pelagic guns. The spear gun is also quick to reload and that can mean a lot in the chilly waters to a free diver. This is the third JBL MAGNUM style I have owned in a little more than 20 years and the fifth I have purchased, the other two being gifts for partners. The only thing I would change about this spear gun is the length of the cord. If it were just a few feet longer, say a total length of 15 to 18 feet. Other than that I find the balance of the gun while underwater is fantastic, the same as the 38 Specials I have owned before. Easy to line up on a target with a low recoil and easy reload. The new version of the MAGNUM series seem to be made with a more durable feeling in the trigger housing and the metal of the trigger and safety feel like they are made from better quality materials and better tooling of the metal parts than the gun I bought back in the 1990's. This gun has an easier, smoother pull letting me hold the target even better than before. Way to go JBL for a nice improvement in what was already a nice spear gun and way to go Leisure Pro for carrying their products!

    • Was this a gift?:
    • No

    Comment on this review

     
    4.0

    jbl spear gun

    By stubby

    from cookeville tn

    About Me Casual/ Recreational

    Verified Buyer

    Pros

    • Accurate
    • Durable
    • Fast
    • Good Range
    • Lightweight
    • Low Recoil

    Cons

      Best Uses

      • Cold Water
      • Open Water
      • Small Prey
      • Warm Water

      Comments about JBL 31" (79 cm) Magnum Custom Double Sling Spear Gun (4D33):

      works good

      • Was this a gift?:
      • No

      Comment on this review

      (1 of 3 customers found this review helpful)

       
      4.0

      It is a great gun

      By TREVOR

      from Corpus Christi T.X.

      About Me Advanced

      Pros

      • Accurate
      • Lightweight
      • Low Recoil

      Cons

      • Poor Construction
      • Shafts break

      Best Uses

      • Close To Shore
      • Small Prey
      • Warm Water

      Comments about JBL 31" (79 cm) Magnum Custom Double Sling Spear Gun (4D33):

      I use this gun at the jetties and offshore close to the surface at the rigs but this gun has broken 2 shafts they break at the notch where the wishbone locks into the shaft both times i dident pull the trigger it just broke out of nowhere and the second time missed my friends head by 4 inches

      Comment on this review

      (1 of 1 customers found this review helpful)

       
      5.0

      Great gun

      By lopey

      from San Diego, CA

      About Me Recreational Diver

      Pros

      • Accurate
      • Durable
      • Fast
      • Good Range
      • Lightweight
      • Low Recoil

      Cons

        Best Uses

        • Close To Shore
        • Cold Water
        • Large Prey
        • Small Prey
        • Warm Water

        Comments about JBL 31" (79 cm) Magnum Custom Double Sling Spear Gun (4D33):

        Great all around speargun. Have used this from mexico to japan. Always does the job and does it right. Very happy to own this product.

        Service and delivery comments:

        Great and very fast no problems

        Comment on this review

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        Q&A

        Questions & Answers Powered by TurnTo®

        Questions about this item:

        Shopper  Why Did You Choose This?
        DON K  Good alround gun. Put alot of fish in the boat with it.
        Shopper  where is the spool or reel that lets out the line and how much line is there?
        JAN D  We have jbl 2 band and 3 band they r both great guns have shot 100 s of fish you can also change band size if too hard to load for a gal.
        Richard R  What size are the spear points 6 or 7 mm?
        ERIC M  I forget. The spearpoint that comes with the gun rusted away pretty quick, so I bought a new triangular point one.
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