A replacement heart valve post and leaflet assembly may include at least a first post member including a body portion, a cantilevered leg portion, and a hinge portion configured to connect the body portion and the cantilevered leg portion and one or more leaflets. The cantilevered leg portion may comprise a longitudinally extending slot defined therein. At least a portion of a leaflet may extend through the slot. A backing element may be positioned over a portion of a leaflet such that the leaflet is secured between the cantilevered leg portion and the backing element.