This is KA Tech Airsoft’s M249 Featherweight equipped with a Polarstar F2, Bullgear Hopup, maple leaf 75° flat hop and madbull 363mm 6.03 inner barrel If you want to be feared on the field while still having a light weight gun for its size, this is the rifle for you! All KA Tech Rifles come as shown with FCU & Battery - attachments, fcu and battery can be removed to lower cost