10.5 KWA barrel set for 2.5 AEGs. 6.02 stainless barrel... outer barrel and hop up are proprietary to the 2.5s. All in good shape. Thanks for looking, message me with any questions. Tap the pictures to expand and see the whole thing. If I don't reply, please feel free to send another message. Sometimes they don't go through or I miss them. Tap my name to see my other posts!