Re: magazine capacity/new jersey
15 rounds is the max in NJ. rifle or pistol
BUT you can block the mag to limit it to 15rns. Glock makes a drop in mag block for the G-17 mags, just a plastic spacer that goes under the follower spring. Kinda like pluging a pump gun to three shots. Just as long as you cant put no more then 15 in, it does not have to be permanent.