• These units alter the capacity of all High Capacity Full Metal Lined Glock magazines.
• These units add three rounds to the 9mm, two rounds to the 40SW and 357SIG and one round to the 45GAP models.
• They are made from High Impact Polymer and withstand drop tests at temperatures from -20 F to 350 F.

This unit adds capacity to Mid and Full Size Glock high capacity magazines. The Model PG-GP magazine extension replaces the magazine floor plate adding three rounds capacity to factory 9mm; two rounds capacity to factory 40SW and 357SIG, and one round capacity to factory 45GAP magazines.

Fits M17,18,19,22,23,24,25,31,32,34, 35,37,38.