The S&T M249 PARA Sportline BK is an ultra-lightweight Airsoft Support Gun / Light Machine Gun, that is powered by a Battery. It is constructed from tough yet lightweight Polymer which makes it much easier to move around the field than its' Full Metal counterparts. With a Quick Change Spring for rapid power changes, and other tactical features such as an Integrated Bipod, PARA Stock and 20mm Rails, this is a replica for a Machine Gunner on the move.