I have 5 Glock 19 lightly used OEM mags. They are 15 rounders and will sell to LE with ID for $22 each shipped to you from FL. Will also ship outside NJ to any State where 15 rounders are legal.
Union County( when in NJ)
Paypal, Money Order, Check, Zelle
By the way, you can get an older workhorse laserjet printer such as an HP 5 or 6 and cartridges (5000 pages each) can be had for about $20 each. I wish my setup could do double-sided. With that cost basis you can make copies of a lot of information, but where to store it, etc.