the front and rear sights should be nation match marked NM the barrel too should be marked .308 on the side when you pull the handle back. Inside there should be a 3/4" block in the front of the mag well, this keeps the shorter .308 rounds in place when firing. If there's not one and they tell you that it doesn't need it then I would buy it. Pun intended. Also the stock will have stock bedding compound around the rear of the reciever should be able to see it with the gun still together. Reciever should fit very tight in the stock so don't be surprised if he doesnt want to pull it apart. Also price range should be $1000-1500.