I have three assisted Benchmades. The 585, the 470, and now the 490. I've had the 585 Mini Barrage the longest of the assisted BMs and I used it as my EDC for about 18 months. Snaps open today just as well as it did new, and I've never had problems with the AXIS locks on any of my BMs. Besides if it wears out or breaks BM will fix it for you.