Finally, for those wondering, it is magnetised so the guns rotate. And if you wanted - from one kit, youcan easily magnetize the Hunter or Stalker parts for either on a single chassis - the only part that is required for both weapon ounts is the small aerial assembly - otherwise you can have both weapons from one boxset. I sold my Hunter bits on ebay for a tidy amount that will go towards the next Hunter/Stalker model!
Thanks for reading and I'll be back in due course with some more Relictor and Necron goodies. Take care.