I don't know if anyone remembers these(or even wants to) but I have two +2 magazine extensions for 9mm & 40S&W, and two +2 extensions for 10mm & 45 ACP. for sale. Each pair of these is in original plastic envelope.
Asking $7.50/pr plus shipping(cheapest way). Will take $12 plus shipping for both.
I've had them since the 10 rd magazine restriction, just never got around to assembling them to my Glock magazines. I have no idea if Glock magazines have been changed since then. I haven't bought a new Glock since then.
First "I'll take it" and PM. I take Paypal, USPS money order or personal check.