This unit adds capacity to Mid and Full Size Glock high capacity magazines. This magazine extension replaces the original floor plate and internal locking plate and adds two rounds to a 9mm; two rounds to a 40SW and 357SIG, and one round to a 45GAP magazine.
*Check your state and local laws regarding magazine capacity restrictions.

Key Benefits

• These units alter the capacity of 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 250 F.

Fits Glock: 17, 18, 19, 22, 23, 24, 25, 31, 32, 34, 35, 37 and 38