The gun functioned fine right out of the box but the extractor had zero tension but still functioned. There are better parts out there so I replaced the ones I wanted to and thought were important such as the pins, extractor, and I like CS springs from Wolff, they last a long time. I was unaware that the mainspring that comes with the ed brown rebuild kit was a #19 so I installed the wolff one I had which is a #23, it has just a bit more tension when cocking the hammer.