It depends on the model, but it usually is on the barrel somewhere or the breech below where you load the pellet or BB.
You need to state the model to even have a chance of identifying the age of the air rifle. There is no list of every air rifle by serial number.
It was made in 1978
It is not possible to answer this question with just the serial number. It most likely is made in China
Please state the Model number and the condition of the rifle Excellent to Poor.
It was made in 1974
by the serial number. Post the serial number here on answers, put it in the "air gun and air rifle" category and I'll locate an answer for you.
I'm going to need more information, like who made the rifle and the model number to Identify it. Just the serial is not much help.
Unfortunately their is no master record of every model air rifle made by model number that is compiled into one list. You will have to give some sort of description of the rifle. Is it a spring powered air rifle or C02 or Pump? Is it made out of wood or plastic? It is a BB or a Pellet air rifle. How long is it? About how old is it? Does it have any markings on it other than the serial number? Is it a multy or single shot rifle? without more information it is not possible to answer your question.
The serial number 4279990 is a partial serial number for this rifle. To determine the date the rifle was manufactured you need to provide a complete serial number that begins with letters.
It was made in 1983
You have listed the model number of your rifle,not the serial number.