Pearce Grips’ Glock Magazine Extension enhances the capacity and ergonomics of any Glock Gen 4 or 5 subcompact, mid-size, or full-size high capacity magazine.

This magazine extension replaces the original floor plate and internal locking plate of a Glock Gen 4 or 5 pistol. The extension increases the capacity of a 9mm, 40 S&W, or 357 Sig magazine by two rounds and a 45GAP magazine by one round. Made of high impact polymer, the magazine extension can withstand drop tests at temperatures ranging from -20° F to 350° F.

• Replaces the original floor plate and internal locking plate of a Glock Gen 4 or 5 pistol
• Increases the capacity of a 9mm, 40 S&W, or 357 Sig magazine by two rounds
• Increases the capacity of a 45GAP magazine by one round
• Is made of high impact polymer and can withstand drop tests at temperatures ranging from -20° F to 350° F