Nice review of a classic rifle. From memory the PH6 magazine system was available on both Hunstman MK2 and Harrier models, this one being a Harrier. I think that the Harrier version was more popular as the Huntsman weighed about 8.5lbs in single shot form. The PH6 version was about 8oz heavier which would have been a very heavy rifle once scoped. The Harrier was about 7.5lb in standard form so was more manageable in the PH6 version. I remember trying a PH6 Harrier years ago but much prefer the single shot versions, although if I could get one for £200 I would jump on it as Daystates on this era were very solidly made and reliable guns.