The Valken M4 Metal Alloy MK3 AEG, part of the Valken Tactical Alloy Series, is now in stock at Airsoft Atlanta in combo package... "The Valken Alloy Series M4 MK3 AEG Black is an all metal airsoft gun with SHS gearbox guts newly made in 2017. We really like this gun! It's a solid airsoft design that most airsofters desire in an out-of-the-box base configuration.