I totally agree with above post. I had a Kel-tec 380 cal. and had problems jamming, doubling feeding etc.
when I first got the gun I bought a box of ammo and had issues with that brand so I ended up buying 2 different brands of ammo and still had issues. In addition, other co workers lent me different 380 ammo to no avail.
At this point, I contacted Kel-Tec and sent the gun back with a note with each brand of ammo I tried. They fixed the rail and slide and sent the gun back after test firing with a note indicating they tried 5 out of 6 brands of ammo I used.
Within a month, I traded that gun in for a Ruger LCP 380 that fits nicely in my pants pocket. I never had a issue firing this gun.