V-12 hpa engine I used it 2 times on the field. Basically brand new. Just don't want hpa. It is in a GI CUSTOM flaming hog body with a 10 inch Daniel defense rail. I paid 210 for the engine but given that I paid a lot for the body of the gun and it's in great condition other than it's missing the charging handle which is a simple fix. I still have the charging handle just missing the spring that goes with it.