Practice Lock: Core Trainer

I love the cores they can realy change the dificulty of a lock (especially y1). Though you do need the fallower tool to change them out though. I would recommend buying a practice, Lock or sidewinder with the reload kit and this if you wanna practice on different cores.

Can't review because i bought the core to use on my revolver. They are not compatible even though I was told they were by a sparrow's representative, probably, the same representative that told me to buy the reload kit with my revolver. Which also doesn't work with the overwater.Due to the pins being different sizes , thanks Sparrows

If you are a professional or just picking for fun, you cant go wrong with sparrows