Pm Sent Ollie---still not sorted with a place yet.
sure that Artex either had a bit missing (that pushed onto the cocking arm) or it is a really crappy design and it could do with something improvising--- Like a wheel or a bar.
I had that bugger apart about 6 or 7 times, messing with various springs before i hit on the combination of it cocking without flipping the cocking arm out AND it.s mighty power level.
If anyone has every had a broken airgun that they have never seen before and that you cannot find a parts diagram off/stripping guide, you are missing out on some fun.