He is a lovely dog, well boned, and lots of Malinois features, but I don't think I can answer your question with certainty. I hope someone with breed experience will pop by. You clearly have your doubts, so you could do a Wisdom Panel DNA test. They are not too dear these days, and a lot more accurate than they used to be.
It is very hard to say was he from an accidental litter with unknown father or you bought from a breeder and are now unsure? He looks possibly mixed to me.
Beautiful dog, but something seems off a little with the body and at his age his body is going to change a lot, so no clue really.
I thought he looked a little heavy in the head - more like a GSD - but I haven't seen many Belgians of that age. I have seen that heavier look on here before, but we didn't have a follow-up, so don't know whether that one did turn out to be pure bred or not.
I bought him from a breeder with no papers. I did this knowingly and the price was reflected so I’m not worried about it. As he’s maturing I get a lot of people saying he looks more like a GSD. I have a good friend that has a female mal and she is very petite in her features so when they are around each other is when I see the major difference. Regardless of what he is (or isnt) he’s a great dog and I look forward to many years of companionship.
Would doing a DNA be worth it or are they inaccurate? I’m very happy with him regardless, it would just be for my knowledge.
He is a lovely puppy and it sounds as if you were quite happy with the possibility of him not being pure bred. I would be tempted to DNA test him, but only to satisfy my curiousity. I'm sure he will have the makings of a great working dog. Enjoy him.
As has been said he is a lovely dog, and I can also see some GSD in him. If he were mine and I was happy with him, as you are, I do not think I would bother to have a DNA test - just enjoy him for what he is.
I wouldn’t worry about that, it's not unusual for breeders not to have the stud dog. I’m wondering if he could be from KNPV lines as they tend to be heavier built. The KNPV dogs don’t have an FCI or official pedigree.