Here is Explosive Enterprises giving a comprehensive guide on A&K airsoft MMGs, specifically the M60, Mark 43, and PKM, and how to maximize their potential. They give a brief history of the real-world M60 and PKM, highlighting their design origins, service history, and key features. They detail the external features of each gun, including materials, finishes, and notable differences between models, and delve into the internal components of the guns, focusing on disassembly, hop-up units, barrels, and gearboxes.

They further examine the box magazines used by the M60 and PKM, discussing their features, potential issues, and solutions, and compares the handling and ergonomics of the three guns, highlighting the strengths and weaknesses of each. They also explore alternative magazine options for the M60, including a magazine adapter for M4 magazines and a modified Capco Assault box, and discusses options for mounting optics on the PKM, M60, and Mark 43. To end the video, they list the the pros and cons of each gun and offering recommendations for upgrades and modifications.