well, they are a bit late, aren't they??
first of all MP5 - smg is being phased out by Pakistan Army, and since they have them in numbers- its better to give them to Security Agencies , balochistan police for AT - CQB roles.
Secondly - modification of G-3
3- We are importing M-4 clone by Sarsilmaz Turkey, one - they will be converting them to Semi - Auto and sell it to civilian market at a competitive price and secondly - you will be seeig the full auto variant with ATS and other LEAs.