I personaly think this gun is awsome I believe its modeled off of the Barret Rec7 (or aka the M468). This gun looks very good I think it has the same length barrel as a M16 or its just a little bit longer than the M4 barrel. 400 FPS is a little high for me and may not be accepted at some fields and it accepts M4/M16 style magazines. Another thing I don''t like about it is the PEQ battery box it kind of ruins the look of the gun. The RIS on this gun is a plus though that way if you ever decide to put on a M203, flashlights or a vertical grip.