Defense Minister
Member
I have two M&P .40s, one full-size, and one compact. The compact mags hold 10 rounds, and the full-size mags hold 15. When I used to load the compact mags up with the full ten rounds, the tenth round was extremely difficult to insert into the magazine, and the fully-loaded 10 round mag was extremely difficult to insert into the mag well. So, I have been loading the mags with only 9 rounds. Then I got to thinkin'...
I disassembled one each of the full-size and compact mags, and just as I had begun to suspect, the springs were exactly the same length. So, I went to the "experimentation" table (my workbench). I cut two coils off of one of the springs and reassembled the compact mag with that spring. It would still only hold ten rounds, but the last one was much easier to insert into the mag, and the fully loaded compact mag now goes into the mag well much easier.
I don't know if all the compact mags come with the full-size spring or not, but I thought I would pass this along in case anyone else was experiencing the same thing. Cheers!
I disassembled one each of the full-size and compact mags, and just as I had begun to suspect, the springs were exactly the same length. So, I went to the "experimentation" table (my workbench). I cut two coils off of one of the springs and reassembled the compact mag with that spring. It would still only hold ten rounds, but the last one was much easier to insert into the mag, and the fully loaded compact mag now goes into the mag well much easier.
I don't know if all the compact mags come with the full-size spring or not, but I thought I would pass this along in case anyone else was experiencing the same thing. Cheers!