All the guns they are testing failed the competition for Indian Army ,all the guns are very expensive no way can they be mass produced as standard service rifle may be some SF will get them ,nothing else.AK 103 is being considered for IA and thanks to Pak support for Turkey and economy ,Russia will not give AK 103.
Well a smaller military is more flexible when it comes to these issues. Cost won't be a problem at all; we still have around 2-4 Billion dollars to spend this year in defence. It would only cost 50 Million dollars a year for 4-5 years to fully induct it.
Currently FN Scar is winning the trails but Pakistan has very complex trails. Rifles are trailed in every climate, condition and situation. This rifle has to be perfect for PAF and match all of its requirement.
As for AK 103; it was Russia that insisted it should be allowed in the trails. Pakistan army already has AK 103's in active service.
However modified Type-56's have been very effective in the war against terror.
AK-103
Modified Type-56's