This is a base gun of a Valken Alloy Series MK.I but has an aftermarket rail system, madbull backside barrel extension, and a brand new stock. Shoots great. Full metal body. CHECK OUR OTHER LISTINGS FOR TONS OF OTHER GREAT DEALS!!! This is a listing from East Coast Airsoft. We are a physical retail store located in Bel Air, Maryland. If you have any questions or concerns feel free to reach out to us any time. Either on here, Facebook, Instagram or you can give us a call at 410-838-6856. The store is open every day from 11AM to 8PM. ALL PRICES DO NOT INCLUDE SHIPPING, please message us your full shipping address for a quote. WE ONLY DO TRADE INS AT THE STORE, IF YOU ARE. NOT LOCAL WE ARE NOT INTERESTED IN TRADES!!!