There is a Legacy version
here.
Multishot Stance [one-action] Feat 18*Fighter Stance Source Player Core pg. 150 2.0Archetypes Archer,
ArcherPrerequisites Triple ShotRequirements You are wielding a ranged weapon with reload 0
* This version of the Multishot Stance feat is intended for use with an Archetype and has a different level for access than the
original feat.
You lock yourself in a stable position so you can fire swiftly and accurately. While you are in this stance, your penalty for Double Shot is reduced to –1. If you move from your position, this stance ends.
Special If you have Triple Shot, when you use Double Shot to make three Strikes, the penalty is –2.
Archetype Use
This feat can be used for one or more Archetypes in addition to the listed Classes. When selected this way, the feat is not considered to have its class traits.
Traits
Stance: A stance is a general combat strategy that you enter by using an action with the stance trait, and that you remain in for some time. A stance lasts until you get knocked out, until its requirements (if any) are violated, until the encounter ends, or until you enter a new stance, whichever comes first. After you use an action with the stance trait, you can’t use another one for 1 round. You can enter or be in a stance only in encounter mode.