Gamakatsu Under Spin Head Size 4/0 3/16oz

The Gamakatsu Under Spin Head in size 4/0 with 3/16oz weight combines a proven swimbait jig head with a compact spinner blade, engineered to help you connect more reliably when throwing larger soft plastics through heavy cover. Built on Gamakatsu's Heavy Cover 60-degree hook—a heavy-wire design with a wide gap—this head excels when you're fishing braid or fluorocarbon and need solid hooksets on bulky swimbaits. The streamlined profile cuts through dense grass, timber, and laydowns without snagging unnecessarily, while the Spring Lock keeper holds your plastic straight and secure on the shank.

What sets the Under Spin apart is the small chrome blade mounted on a ball-bearing swivel: it spins freely even on slow, methodical retrieves, adding flash and subtle vibration that triggers strikes without overwhelming the natural action of your soft plastic. The recessed, lifelike eyes molded into the head give predators a focal point and enhance the overall profile underwater. This is a practical choice for anglers who want to combine the durability and hookup reliability of a premium jig head with the proven fish-attracting qualities of a blade.

The 4/0 size and 3/16oz weight sit in the sweet spot for medium-depth and shallow-water presentations with swimbaits in the 4-5 inch range. Whether you're working grass beds, rocky points, or current breaks, the Under Spin Head delivers both casting distance and a reliable platform for your presentation.

Key Features

• Gamakatsu Heavy Cover 60-degree hook with wide gap for improved hookup and retention
• Heavy-wire construction rated for braid and fluorocarbon line
• Streamlined head profile designed to slide through cover
• Spring Lock keeper holds plastics straight and firmly on the hook
• Recessed lifelike eyes create a natural focal point
• Chrome spinner blade on ball-bearing swivel spins freely at all retrieve speeds

Specifications

Frequently Asked Questions

What swimbait size works best with the 4/0 Under Spin Head?

The 4/0 3/16oz head is designed to pair well with swimbaits in the 4-5 inch range, though you should always match your plastic's weight and action to your target depth and cover type.

Will this jig head work with heavy braid?

Yes. The Heavy Cover hook features heavy-wire construction and is rated for use with braid or fluorocarbon line, making it a solid choice for power fishing through dense vegetation and timber.

How does the Spring Lock keeper work?

The Spring Lock is designed to hold your soft plastic gently but securely on the hook shank, keeping your bait aligned straight during the cast and retrieve without damaging the plastic.

Does the blade spin at slow retrieves?

Yes. The chrome blade is mounted on a quality ball-bearing swivel that spins freely even on slow, methodical retrieves, giving you flash and vibration at any speed.