Dvor has it right now for 12.50. I have some of their other stuff and its good quality, I will be ordering some of these, at least for the backup mag(if you're not a member, shameless plug use my link, I do get a $10 credit if you buy something, you get the same if you add people Join Dvor.com Now for Free! )
FAB Defense 4 Round Magazine extension for Glock 43
FAB Defense 4 Round Magazine extension for Glock 43
