Pearce Grip PGG4+ Glock Magazine Extension 9mm/40 S&W +4 Rounds

The Pearce Grip PGG4+ Magazine Extension transforms standard Glock magazines into higher-capacity platforms while maintaining reliability and concealability. This polymer extension adds four additional rounds to compatible 9mm Luger and .40 S&W Glock magazines without compromising the pistol's balance or grip ergonomics.

What Makes This Different

Unlike basic magazine extensions that simply add length, the PGG4+ incorporates Pearce Grip's proven finger groove design for enhanced control during rapid fire sequences. The extension maintains the original magazine spring tension through precise internal geometry, ensuring consistent feeding across all four additional cartridges. Factory Glock magazines typically hold 15 rounds in 9mm configuration, making this extension capable of achieving 19-round capacity.

Key Features

• Adds 4 rounds capacity to standard Glock 9mm and .40 S&W magazines
• Injection-molded black polymer construction matches Glock factory finish
• Integrated finger rest provides improved grip control and comfort
• Drop-in installation requires no permanent modifications to magazine
• Compatible with Gen 3, Gen 4, and Gen 5 Glock pistols
• Maintains reliable feeding with factory and aftermarket ammunition
• Low-profile design preserves concealability for carry applications

Range testing demonstrates consistent cycling through extended firing sessions, with the reinforced polymer construction withstanding repeated magazine drops on concrete surfaces. Competition shooters benefit from the additional capacity during USPSA and IDPA matches, while duty officers gain tactical advantage without requiring backup magazines. The extension's streamlined profile prevents snagging during holster draws and maintains compatibility with most aftermarket magazine pouches designed for extended Glock magazines.

Technical Specs

• Material: High-impact black polymer
• Capacity increase: +4 rounds
• Compatible calibers: 9mm Luger, .40 S&W
• Fits: Glock double-stack magazines (excludes single-stack models)
• Installation: Tool-free, reversible
• Weight: 0.8 oz
• Country of origin: USA
• Manufacturer: Pearce Grip Inc.

Pearce Grip's three-decade reputation for magazine accessories ensures this extension meets the durability standards required by law enforcement and competitive shooters. The PGG4+ represents proven engineering applied to modern Glock platform requirements, delivering measurable capacity improvements without sacrificing operational reliability.