An agricultural baler. The agricultural bailer includes a baling chamber, a first plunger, a second surface opposing the first plunger, and a track assembly. The baling chamber includes a first wall and a second wall. Each of the first wall and the second wall includes a slot extending along a length of the baling chamber. The first plunger is moveable within the baling chamber and is configured to compress a compressible material into a bale. The second surface is configured to support the compressible material within the baling chamber. Each of the first plunger and the second surface includes a slot aligned with the slots of the first wall and the second wall. The track assembly includes a gated channel and is disposed within the slots of the first wall, the second wall, the first plunger, and the second surface such that the track assembly substantially surrounds the baling chamber.