The G43 is the most popular Glock for 2016. Now you can improve the grip by adding the GSPC magazine extension for the Glock 43. Extra Power Magazine Spring also available. Now Available in a Combo pre-installed on a factory magazine. Available in +0, +1, and +2 configurations It was designed to provide a larger grip yet still maintaining a slim, concealable profile. Add up to 2 rounds to your Glock 43 magazine! Please note: Does not fit the Glock 43X or 48.