I have 400 rounds through my 43 so far without any malfunctions what so ever. I plan to put it over the 500 mark tomorrow. Once I get to 1,000 rounds I will give it a good cleaning and start carrying it. The stock plastic sights were replaced with Ameriglo Tritium night sights and I have added Talon rubber grip. The magazines load easier than any Glock magazine I have ever loaded.