FAB Defense 43-10 Magazine Extension for Glock 43, +4

The FAB Defense 43-10 is a magazine floor-plate replacement for the Glock 43 that adds four rounds for a total of ten rounds in a magazine. Its ergonomic profile improves magazine manipulation and enables a full grip on the handgun when the extension is installed. The design accepts the original magazine spring and is molded from fiberglass-reinforced polymer with a black matte finish.

Key Specifications

• Adds +4 rounds, increasing a standard Glock 43 magazine to 10 rounds.
• Constructed of fiberglass-reinforced polymer for durable, lightweight use.
• Features a black matte finish.
• Compatible with Glock 43 magazines.
• Innovative spring plate design allows reuse of the original magazine spring.
• Special ergonomic profile enables a full grip on the handgun when the magazine is inserted.
• Includes contoured finger indents to aid magazine manipulation.
• Product type is magazine extension.
• Brand fit listed as Glock and model fit listed as G43.

Designed for compact carry and everyday use, the FAB Defense 43-10 extends magazine capacity while preserving the original spring and improving manual control during reloads. Its polymer construction keeps weight low and the matte black finish maintains a discreet profile, making it a practical upgrade for Glock 43 owners seeking additional rounds and improved handling.