Anticipating the now approved 10 round mag limit here in NJ, I picked up some magblocks for my CZ75 compact 14s. I wanted to order some mag springs too, in case I moved to a free state or NJ politicians came to their senses, most likely the former before the latter, so I could convert them back to 14s. To make a long story longer, I emailed CZUSA because I had a question on just what spring to get. They got back to me the same day, told me they did not have the springs I needed in stock but would be happy to send some used ones at no cost, how many did I need? Less than a week later I received the springs (look like full size springs?) AND base plates. Put them in the mags with the magblocks and went to the range last Friday. Not a single problem after 200 rounds through all four mags. Needless to say, very happy with CZUSA and Magblock, still po'd at our clueless Governor and company.