There is a Legacy version
here.
Mobile Shot Stance [one-action] Feat 10*Fighter Stance Source Player Core pg. 146 2.0Archetype Archer* This version of the Mobile Shot Stance feat is intended for use with an Archetype and has a different level for access than the
original feat.
Your shots become nimble and deadly. While you’re in this stance, your ranged Strikes don’t trigger Reactive Strike or other reactions that are triggered by a ranged attack.
Special If you have Reactive Strike, you can use it with a loaded ranged weapon you’re wielding. The triggering creature must be within 5 feet of you for you to do so.
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.