The Pearce Grip PGGP-MID is a magazine extension built for mid-size and full-size Glock high-capacity models, replacing the factory floor plate to add two rounds to 9mm magazines, two rounds to .40 S&W and .357 SIG magazines, and one round to .45 GAP magazines plus a steadier gripping surface.

Key Specifications

• Built by Pearce Grips to fit mid-size and full-size Glock high-capacity models magazines.
• Adds two rounds to 9mm magazines, two rounds to .40 S&W and .357 SIG magazines, and one round to .45 GAP magazines.
• Replaces the factory magazine floor plate and internal locking plate for a clean, drop-in install.
• It replaces the original floor plate and internal locking plate.
• Molded from durable black polymer built for daily carry and range use.
• Incorporates the factory texture pattern for a seamless, factory-look fit.
• Chambered for 9mm, .40 S&W, .357 SIG, or .45 GAP magazines.
• Part of Pearce Grips’ line of drop-in magazine capacity upgrades.
• Measures approximately 3.9 inches in overall length once installed.
• Ships at a shipping weight of about 0.05 lb.

Frequently Asked Questions

How many rounds does this extension add? It adds two rounds to 9mm magazines, two rounds to .40 S&W and .357 SIG magazines, and one round to .45 GAP magazines depending on the host pistol, replacing the factory floor plate and internal locking plate in the process.

Does it work on every Glock/host variant? No — fitment is limited to mid-size and full-size Glock high-capacity models; check the compatibility notes above before ordering, since some frame sizes and calibers are excluded.

Buy the Pearce Grip Magazine Extension for mid-size and full-size Glock high-capacity models

Ships fast from a Lubbock, TX gun shop on the Pearce Grip Magazine Extension for mid-size and full-size Glock high-capacity models from Pearce Grips, part of our Glock Parts selection. Pick one up to add capacity and a steadier grip in one drop-in part.