Massive AK is a medium-sized and spectacularly robust weed plant. This powerfully aromatic F1 hybrid has the best genetics from four native varieties: Afghani, Colombian, Mexican and Thai. That means this cannabis bestseller has both sativa and indica properties. You notice that particularly in the effects because thanks to its THC percentage of some 21%, Massive AK delivers a powerful high, closely followed by a nicely relaxing effect. It has a short flowering period of 7-8 weeks and a maximum yield of 500 grams per square meter.