How to get the highest possible AP reduction in VATS
Guide to 0VATS modifications, which once were completely reducing AP consumption in VATS
Jan 24, 2020
When you play VATS commando build, your priority is the highest possible AP reduction when shooting in VATS. In this article, you will find out how to get the possible highest reduction.

If you look upon the explanations what's hidden from in-game definitions, you'll see that certain mods reduce AP cost by percentage. For Ballistic Pistols and Rifles, the AP cost modification from turning semi weapon into automatic one is -50%. Legendary 25% mod stacks with this directly, putting the reduction at 75%. You need 25% more AP reduction from other mods, and this you can achieve by using:

  • Aligned barrel, any length (-5%)
  • Aligned or Forceful stock (-5%)
  • Quick or Swift Magazine (-5%)
  • Reflex sight (-15%)

Adding up the percentages from the modifications and from legendary effect, we get 105% AP reduction. Does this mean that we are now using 0 AP when shooting with VATS? If this were the case, the subtitle of this article would not be: "... which once were completely reducing AP consumption in VATS".

Thanks to Eckserah, founder of Fallout 76 Dataming, i found out that with the Wastelanders going live, the AP reduction counting has changed. Instead of adding up percentages, we now multiply the biggest reduction (automatic receiver, -50%) by next reductions, which gives us:

.50 * 1.25 * 1.05 * 1.05 * 1.05 * 1.15 = 0.83204296875

So, if you configure your weapon to become a zeroVATS weapon, you will reduce your VATS action points consumption by 83%, and hence you will be capable to achieve the highest sustained DPS.

The highest reduction can be obtained only on rifles/pistols that can be modified to automatic receiver. As a result, heavy weapons, shotguns or non-auto receiver rifles will not achieve the same reduction, as for example Handmade.



The game is often being adjusted under the hood, and to have precise results, its necessary to periodically retest everything. If there's something that you think should be retested, or you want to share:

Article by Gray770