Pakistan should not change its calibre to 5.56 nato as we all know its not worth it.
We have 2 choices that the army can play around with.
STANDARD RIFLES
1) Buy the HK, 416 and the HK417, technology . so we can make all sort of varients 7.62 and 5.56 calibres plus sniper rifles. HK 417 stays as the main rifle of PA, while 416 could be issued to companies, brigades, battalion or various dept of the three armforces according to requirement.
well Iam hoping they will also come with standard dot scope and granade launcher.
2) Second choice would be massive change in the G3 size, reduced recoil and weight.
POF should recreate or re engineer G3 manufacture it in 12" barrel size using same carbonised steel material for body and butt stock. Plus PA shiuld also change the ammo to 6.8mm or 7 mm calibre round. This will make the same G3 light weight less recoil user friendly and a great assault rifle with a huge punch. Addition of dot scope and granade launchers on the weapon is much needed.
SUB MACHINE GUN
The aging MP5 also need a up grade as its 9mm round is weak. MP7 should take over the mp5. the MP5 batch can be transfered to the local police and law inforcement agencies.
SUPPORT
The HK MG43 is also an excellent machine gun for support for PA, they should also buy this technology from HK as well.