If a magnetic trigger is available for a gun they generally come stock, for instance a Smart Parts Ion. On the Ion it has a small circular magnetic on the back of the trigger that makes the trigger pull back toward the frame. My gun came stock with one, and the first thing I did was take it out, because it made it extremely choppy and awkward. However I know some people leave them in and love the feel, it's all personal preference. Having said this, I don't know of any kits to convert a normal trigger to a magnetic one. I have the CP sling on my Ion now, it is not a magnetic trigger. It is considered a roller bearing trigger, with two small bearings at the top pivot point of the trigger, this has been a quality trigger and I highly recommend it.