Its not so serious problem as some bugs, but I think that all of the guns and attachments need to be unique from each other and give special oppotunities for creating new equipment strategies and I have some questions about some of them

• Laser Lopro
  It's so cool that you have added lasers into the mod, but lopro doesn't have any reason to equip because its stats are worse than other lasers. Its heavier, increasing sight delay on huge amount and only reason to equip it to crouch shooting. It's better to equip compact lasers than lopro. But still, i think lopro can be a great oppotunity for non-scope builds, but it need to have more stats than nightstick

• Unique magazines(with additional stats)
  In prev. update magazines has lvl 1 upgrade and that's pretty logical: More bullets in the clip or special ability for ammo. Now this magazines has lvl 3 magazine grade and creating magazine without any bonus doesn't make sense. And also making that yellow magazines are easier than create max upgrade magazine without bonuses, so i think it would be great to do their recipes harder

• Pioneer muzzle
  It's just OP for vertical recoil, so i think it would be more balanced if you reduce its vertical recoil by 25%

• Militech B5 stock
  Increase aiming time total to 4 seconds

• Magrul stock
  It's obviously stronger than new stocks such as ak-12 stock or HK slim line. Instead of nerf it would be great to buff new ones so some of them will be better than magrul, but also will have debuff such as more weight or less accuracy

• buff factory stocks
  non-factory just better than factory just because of huge aiming time

• Add Koch ranger laser editable and func for turning it off

• Option to use bayonets/flashlights(it would be cool) in the laser slot

I don't pretend as balance master, but I think some things truly need to rework. I wish to see some of them in future versions!)
upd: I know its configable, but I think it would be better to give suggestions for balance to you

Detailed balance issues should be considered by the modpack author or server host. You are free to config the parameters of guns and attachment as you see fit.