There is no denying the 5.56 ammo conversion on the aug - here are two builds you can use right now. First CQC variant: Foregrip: Merc Grip Laser: 5mW Rear Grip: Stippled Stock: Forge Tac CQB Comb Mag: 5.56 60 round drum 550 ms TTK out to 12 meters is very fast combined with 60 rounds will keep you in the right. The weapons 2nd damage range of 750 ms TTK is respectable too but you wont really hit folks beyond 25 meteres. Second Long Range: Muzzle: Monolithic Barrel: 622mm Long Laser: Tac Stock: Forge Tac CQB Comb Mag: 5.56 60 round drum Very good ads speed and solid recoil control... coupled with 1200m/s bullet velocity, you will be hitting folks out to 60m if you'd like. You could drop Comb for Optic to help out in range, but I would say you can comfortably engage out to about 45 meters.