A vehicle seating assembly having a first trim piece including a flange having a first side with intermittently-spaced elongate protrusions and a second side with intermittently-spaced attachment elements. A second trim piece including an inner wall having intermittently-spaced retention windows and an outer wall having an elongate channel disposed on an inner wall surface thereof, the inner and outer walls defining a cavity therebetween. The flange engages the cavity such that the intermittently-spaced elongate protrusions are removably engaged with the elongate channel and the intermittently-spaced attachment elements are removably engaged with the intermittently-spaced retention windows. An airbag deployment system is positioned proximate the first and second trim pieces and configured to deploy an airbag between the first and second trim pieces.