Usually it printed on the left side of the breech or barrel.
I can not find any information about a daisy model R6. In fact as far as I know Daisy dose not use this type of numbering system for any of their air guns or rifles. However Beeman makes a model R6 .22 Cal Air Rifle. Could this really be a Beeman and not a Daisy? If it is, then state the condition of the rifle as Poor, Fair, Good, Very Good or Excellent so I can give you an estimate of value.
The major air rifle manufacturers are Gamo, Crosman, Benjamin, UTG, Daisy, RWS, Beeman, Mendoza, King Arms, Hornady, Beeman, Air Arms, Air Venturi, etcetera.
Beeman makes several good air rifles & guns. I know of 3 different "Sportsman SS" series that shoot .177 pellets And the RS1 Sportsman that comes with 2 barrels .177 & 22. But I know of no Beeman Air Gun called Sportsman. Just the Sportsman Rifle. If you are talking about the RS1, then yes I would have to say it is a good rifle for the price.
it all depends on the condition of the rifle.
Currently it's the Beeman RX-2 at 1125 FPS in a .177 pellet
If you are asking about a model 1073 Grizzly K2. They started into production in 2010 and are still being sold.
I need to know a few things first: 1. Is this a Gun or a Rifle? 2. what is the condition of the weapon? Excellent, Very good, Good, Fair, Poor? 3. I know of "No" model 21320-2281. Are you looking at the serial number? I need the model number!
K-Mart and I have seen them at other sporting-good stores
It would help tremendously if you told me who made the rifle. There are over 1000 different models of air rifles. Was it made by Gamo, Crosman, Daisy, Beeman, Diana, Airforce or another brand? Just the model number alone does not give me enough information to answer you.
The Beeman R-10 was made between 1986-1995. It came in .177, .20 and .22 caliber models. There was also a Deluxe model, a Laser model, a Custom walnut stock model, a Left handed model, and a RDB version. You didn't state the condition of the rifle, so no estimate of value and be given. Is it in Excellent, Very good, Good, Fair or Poor condition? Also what model is it? Give more information and re-post the question and I'll try to give you an estimate.
I suggest you contact Beeman directly and ask your question: they make several different models. Beeman Co 10652 Bloomfield Ave Santa Fe Springs, CA 90670 Ph: 562-968-5891