Pearce Grip PGG4+ Plus Magazine Extension - Glock Gen4/5 9mm Luger/40 S&W Black Polymer

The Pearce Grip PGG4+ Plus Magazine Extension is a black polymer floor plate replacement engineered to add capacity and improve the grip profile on Glock Gen4 and Gen5 sub-compact, mid-size, and full-size high-capacity magazines. Built by Pearce Grip from durable ABS polymer, the PGG4+ drops in place of the factory floor plate and internal locking plate to extend the magazine body, deliver a more secure full-hand grip, and add rounds to your existing magazines.

Designed for Glock Gen4 and Gen5 full metal-lined high-capacity magazines, this plus extension adds two rounds of 9mm Luger, two rounds of 40 S&W, two rounds of 357 SIG, and one round of 45 GAP to compatible magazines, making it a versatile single upgrade for shooters running multiple Glock platforms. The elongated base also provides a full pinky-rest grip, correcting the short, awkward magazine base common to compact and sub-compact Glock pistols.

Installation is simple and tool-free: the PGG4+ replaces the existing floor plate and locking plate on a compatible Glock magazine without any permanent modification. Finished in black, the extension blends cleanly with the factory magazine for an OEM appearance. Trusted by competition, duty, and defensive shooters, the Pearce Grip PGG4+ is a proven aftermarket upgrade that turns your standard Glock magazines into higher-capacity, better-handling magazines.