The Pearce Grip PG-1045+ is a magazine extension built for Glock 20/21/29/40/41, replacing the factory floor plate to add two rounds of capacity plus a steadier gripping surface.

Key Specifications

• Built by Pearce Grips to fit Glock 20/21/29/40/41 magazines.
• Adds two rounds of capacity.
• Replaces the factory magazine floor plate and internal locking plate for a clean, drop-in install.
• It is built for high-capacity magazines only and will not work on the 10-round M20/M21 or the Glock M30 10-round magazine.
• 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 .45 ACP magazines.
• Part of Pearce Grips’ line of drop-in magazine capacity upgrades.
• Measures approximately 3.65 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 of capacity 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 Glock 20/21/29/40/41; check the compatibility notes above before ordering, since some frame sizes and calibers are excluded.

Buy the Pearce Grip Magazine Extension for Glock 20/21/29/40/41

Ships fast from a Lubbock, TX gun shop on the Pearce Grip Magazine Extension for Glock 20/21/29/40/41 from Pearce Grips, part of our Small Glock Parts selection. Pick one up to add capacity and a steadier grip in one drop-in part.