I realized after countless posts about problems with the Kel Tec PF-9 and think for most of those problems the same thing is being done over and over again. I use 115 all Brass FMJ ammo only. No Issues. But everyone thatstates they had a problem are using evrything under the sun especially when Kel Tec states to use only Factory Brass ammo ONLY. But if you go to you tube or forum posts like here people are using everything from steel, aluminum and reloads. No wonder why there are problems. Sure there maybe a defect here and there like any other type of gun but most of these problems I believe are from people who are not heeding Kel Tecs warning. Shoot only Factory Brass ammo and only use up to 124 grain. But again people want to do what they do and hence you get problems for not listening. I spoke to them at Kel Tec and unfortunately the are honoring the warranty on the PF-9's but do realize most are these are caused by people not using the correct ammo per Kel Tec. Again no expert just my two cents worth. But if you do the math it's a no brainer the numbers don't lie. People are not following what they should be following per ammo requirements. Hence you will always have problems for not following the rules set forth by the Company. Remember it's their product they know what is best when it comes to ammo......................food for thought.