An aircraft seat system, comprising: a seat casement comprising a down stop; a headrest portion; a seat back portion; a seat pan pivotably coupled to one or more portions of the seat casement, wherein the seat pan comprises one or more seat pan handles configured to pivotably actuate the seat pan; and one or more extendable armrests pivotably coupled to one or more portions of the seat casement via a pivot pin, wherein the one or more extendable armrests are configured to be retractable upon a pivotable actuation of the seat pan, and wherein the one or more extendable armrests comprise: an armrest cap and an armrest body having a down stop pocket at a first end of the armrest body, wherein the down stop pocket is configured to stop a pivotable actuation of the one or more extendable armrests upon interaction of the down stop with the down stop pocket; a rotator link system kinematically coupled to the armrest body and the armrest cap; and a pivot link system kinematically coupled to the armrest body and the armrest cap, wherein the pivot link system is configured to: pivotably extend the armrest cap along a length of the armrest body toward a second end of the armrest body; and pivotably retract the armrest cap along the length of the armrest body toward the first end of the armrest body; wherein the one or more seat pan handles are configured to be received by one or more armrest pockets formed within the armrest body. a seat casement comprising a down stop; a headrest portion; a seat back portion; a seat pan pivotably coupled to one or more portions of the seat casement, wherein the seat pan comprises one or more seat pan handles configured to pivotably actuate the seat pan; and one or more extendable armrests pivotably coupled to one or more portions of the seat casement via a pivot pin, wherein the one or more extendable armrests are configured to be retractable upon a pivotable actuation of the seat pan, and wherein the one or more extendable armrests comprise: an armrest cap and an armrest body having a down stop pocket at a first end of the armrest body, wherein the down stop pocket is configured to stop a pivotable actuation of the one or more extendable armrests upon interaction of the down stop with the down stop pocket; a rotator link system kinematically coupled to the armrest body and the armrest cap; and a pivot link system kinematically coupled to the armrest body and the armrest cap, wherein the pivot link system is configured to: pivotably extend the armrest cap along a length of the armrest body toward a second end of the armrest body; and pivotably retract the armrest cap along the length of the armrest body toward the first end of the armrest body; wherein the one or more seat pan handles are configured to be received by one or more armrest pockets formed within the armrest body. an armrest cap and an armrest body having a down stop pocket at a first end of the armrest body, wherein the down stop pocket is configured to stop a pivotable actuation of the one or more extendable armrests upon interaction of the down stop with the down stop pocket; a rotator link system kinematically coupled to the armrest body and the armrest cap; and a pivot link system kinematically coupled to the armrest body and the armrest cap, wherein the pivot link system is configured to: pivotably extend the armrest cap along a length of the armrest body toward a second end of the armrest body; and pivotably retract the armrest cap along the length of the armrest body toward the first end of the armrest body; wherein the one or more seat pan handles are configured to be received by one or more armrest pockets formed within the armrest body. pivotably extend the armrest cap along a length of the armrest body toward a second end of the armrest body; and pivotably retract the armrest cap along the length of the armrest body toward the first end of the armrest body; wherein the one or more seat pan handles are configured to be received by one or more armrest pockets formed within the armrest body.