Proline Power Cavity G-Speed 4-Iron

Add high-launching carry height, vintage fairway tracking, and game-improvement stability to your long-range approaches with the cavity-back design of this classic Proline Power Cavity G-Speed 4 Iron.

Key Specifications:

• Brand: Proline
• Model: Power Cavity G-Speed Series
• Club Type: 4 Long Iron
• Dexterity: Right-Handed
• Shaft Material: Steel 
• Flex: Regular Flex
• Condition: Good
• Grip: Proline Stock Custom Textured Rubber Wrap Grip 

Description

The Proline Power Cavity G-Speed 4 Iron is a classic game-improvement long iron engineered to bring maximum launch consistency, uniform distance control, and absolute turf forgiveness to your long-range approach game. Built around an advanced perimeter-weighted cavity-back geometry, this model features an elongated rear cavity insert accented by a mesh back plate and centralized "G-Speed" branding badges. This design purposefully shifts heavy structural mass away from the center of the face and anchors it deeply along the sole and out into the perimeter corners. This configuration radically expands the club’s effective sweet spot, raising its Moment of Inertia ($MOI$) to stabilize the head against twisting on off-center strikes—ensuring your mis-hits preserve uniform ball velocity and fly straight.

The progressive, extra-wide Power Cavity sole profile lowers the club's center of gravity ($CG$), acting as a natural buffer that helps recreational and intermediate golfers sweep the ball cleanly from tight fairway lies or light rough, launching it into a high, carrying trajectory more easily than traditional thin-profile long irons. Labeled clearly on the sole edge with a stylized "4", this vintage choice functions as a highly reliable option off a par-3 tee box or for long fairway approach yardages.

The club is in good pre-owned structural condition, with the face retaining clean, functional scoring grooves for predictable ball traction. It displays normal cosmetic surface play scratches across the satin hitting zone, standard light scuffing along the sole channels, and minor bag wear consistent with regular use. It comes configured with a durable stepped steel shaft and is complete with its original stock black Proline rubber grip.