M240B SAW AEG replica by Matrix. The famous M240, used by US armed forces since 1977, in it's "Bravo" variant used since the 1990's ; with Picatinny side and top rails for improved ergonomics, LiPo ready internals, and a 4000 BBs automatic winding ammobox connected directly to the AEG's battery. A great airsoft gun for any US Army/USMC heavy gunner loadout.