From my experience I would caution on Co2 pistols (magazines)
While they do have good punch, even in winter, for me the downsides out weigh the benefits.
- More expensive to run.
- Can't top-up gas so you may run out at an inconvenient time.
- Faults get expensive as you will waste a bulb every time if there is a leak.
Out of curiosity looking at reviews of the TM FNX it does look good.
Anyone had experience of the VFC or Umarex versions?