FCS G-AM Glass Flex Fins

FCS G-AM FinsDesigned by world-renowned shaper Al Merrick, the FCS G-AM fins are ridden by some of the world’s best heavy weight surfers.

Made to replicate the flex and memory properties of laminated fiberglass the surf fins have a proven fin template inspired by Merrick’s 40+ years of shaping experience.

How Much Will This Fin Set Cost?

The G-AM Glass Flex fins retail for US $40.00. Below are the current prices of this fin set at a variety of online stores and surf shops.

No items matching your keywords were found.

Design and Feel

The FCS G-AM Glass Flex (GF) fins have been designed with a smaller center fin that offers a quick release through turns.

The fin set is made up of 2 side fins and a center fin of different sizes and fin design. The side fins, which have a base of 4.61” (117mm) and a depth of 4.70”(119mm), are larger than the center fin with a total surface area of 15.63”2 (10083mm2). The side fins are also less upright than the center fin with a sweep of 36.3 degrees.

These side fins work in tandem with a smaller center fin.  The center fin has a base of 4.47” (113mm), a depth of only 4.45” (113 mm) and a total area of 14.68”2 (9469mm2). The sweep of the center fin is slightly more than that of the side fins equaling 38.6 degrees.

The FCS G-AM GF fins are from the Glass Flex line of FCS surfboard fins. Glass Flex is FCS’ fiberglass fin material using their injection molding process. This process results in a fin with the identical flex and memory characteristics of laminated fiberglass fins.

This design gives the FCS G-AM Glass Flex fins maximum drive with slightly less hold, making them a very fast set of removable fins. These fins will allow you to pull off some very sharp, short radius turns.

Wave Conditions

The G-AM GF fin set provides great speed and maneuverability, can be used in almost any surf conditions, and can be ridden at pretty much every type of surf break.

The Look

If you don’t like a lot of color or flashy designs and like the natural fiberglass look then you will love the G-AM Glass Flex fins since they are very clean looking. The two side fins are white/clear in color with a black Channel Islands logo in their center, while the center fin is plain white/clear with no logo.

You will also find a raised imprint of the FCS logo located towards the bottom and back of the side fins.

Surfer Specifications

The FCS G-AM Glass Flex fins are specifically made for surfers in the large weight category and would therefore be ideal for surfers weighing between 165 to 200lbs or 75 to 90 kilograms.

Because of the advanced fin template and glass flex technology that makes up the G-AM GF fins, they are best suited for advanced to professional surfers as opposed to beginners.

If you are a medium sized surfer we recommend trying the FC AM-2 GF fins or FC AM-2 PC fins, which is a smaller fin set also based off Al Merrick’s signature template featuring Inside Foil Technology.

What We Think

If you agree that Al Merrick’s designs are by far the most advanced and performance driven available, then you will love these fins. The quality of the materials used to make the FCS G-AM Glass Flex fins, as well as the fin template make them a great buy for large surfers looking to upgrade their current fin setup.

Fin Specifications

Side Fin Center Fin
Material Glass Flex Glass Flex
Base 4.61″
(117.0 mm)
(113.0 mm)


(119.0 mm)
(113.0 mm)


(10083 mm2)
(9469 mm2)
Sweep 36.3° 38.6°
Foil Flat 50/50
Flex Stiff Stiff

Other FCS Surf Fins You May Like

FCS Occy Fins

FCS Sunny Garcia Fins

FCS Occy Fins FCS Sunny Garcia Fins

What Do You Think Of This Fin???...We Want To Hear Your Opinion!

Leave Your Fin Review Below....

Return from FCS G-AM Glass Flex Fins to Surfboard Fins at FinPlug.com

Receive Fin Updates

Share This Site

| More

Featured Fins

FCS H-3 Nexus Medium Fins

Most Popular Fins

FCS K3 Performance Glass Fins
  The FCS K3 Performance Glass fins are the fins ridden by 9 time world champion surfer Kelly Slater.  

FCS K2.1 Glass Flex Fins
  The FCS K2.1 Glass Flex fins are the world beating FCS surfboard fin set.  

FCS M5 Fins
  The FCS M5 Fins are the most popular FCS fins from the M-series.  

FCS DHD 2 Glass Flex Fins
  The FCS DHD-2 Glass Flex fins are Darren Handley's signature template with an adjustable center fin.