Definitely looks like some dank bud!! I'm not so sure it's MK though.. I've been growing MK for a while (Nirvana MK) and it looks nothing like that. The leaves are thinner, and the buds tend to be long instead of short and fat, and they are usually all white pistols till the 9th week of flowering, taking about 10-11 weeks total.
Again, very nice work - try to find out more about the mom.