This is Not a glock gen 4 hate thread, but an information thread. I did a search and did not see this posted as of yet, if it is, please delete this post. Glock Announced that they are Recalling the Gen 4 recoil springs again. You can check out the posting at TeamGlock.com or here is a link Recoil Spring Exchange Program | GLOCK USA You can call Call 1-877-745-8523 with your serial number, or send an email to them with model & serial number per weapon along with your name and mailing address. RSATeam@Glock.us I already replaced the springs in my wife's and my son's glocks with the first updated spring earlier this year, now there is yet Another upgraded spring. You just need to send in your original spring back to glock in a prepaid envelope that will come with your new spring. Stay Safe.