LT Marine - Heavy Weight Cockpit Harpoon

The ultimate heavy-duty harpoon for serious offshore anglers. 100% Made in the USA.

The LT Marine Heavy Weight Cockpit Harpoon is built for sport fishermen who demand maximum power and precision when it counts most. Designed as a heavier upgrade to LT Marine’s commercial cockpit harpoon, this model delivers deeper penetration through prop wash, fast current, or deep water, making it the go-to choice for landing giant tuna, swordfish, and other offshore trophies.

Weighing 10 lbs fully assembled and featuring a 2.5 lb weighted head, this harpoon combines balance, control, and drive. Every unit is machined, assembled, and finished in-house in Connecticut using only certified American-made materials, ensuring unmatched quality and durability — backed by LT Marine’s Lifetime Warranty against material and manufacturing defects.

Every LT Marine harpoon is 100% made in the USA, using certified materials and precision machining to exceed the standards of offshore professionals. From its balanced feel to its corrosion-proof finish, this harpoon is designed to perform — and endure — season after season.

Available Sizes: 8' or 10' (Two-Piece)
Finish Options: Black Hard-Coat Anodized or American Flag Graphic Anodized
Warranty: Lifetime Warranty against material and workmanship defects

Precision Design & Premium Materials:

• Heavier construction: 10 lbs total weight with a 2.5 lb weighted head for improved momentum and deep penetration through turbulent water or prop wash.
• Recessed head threads (1-5/8” deep) help prevent dart shaft breakage during impact.
• True two-piece design — simple and fast to assemble; available in 8' and 10' configurations.
• Includes durable storage bag for easy transport and protection.

Built to Perform in the Harshest Conditions:

• Handle: 1-1/8" diameter 6061-T6 aluminum shaft with a rough diamond knurled grip for secure handling and throwing, even when wet.
• Finish options: Mil-A-8625 Type III hard coat anodized black.
• Dart shaft: 7/16" diameter marine-grade 316 stainless steel, 18" long, precision-turned to fit traditional 3/8" bronze harpoon darts.
• Equipped with LT Marine’s exclusive harpoon dart retention system, engineered by Laurel Tool & Engineering Co., Inc., to prevent accidental dart release if slack forms in the line.
• End cap: Made from 316 stainless steel with a stainless eye-bolt for rigging and secure attachment.
• Comes pre-rigged with a stainless steel tuna dart with spliced Dyneema rope for superior strength and minimal stretch.

Specifications: