You did not state the condition of the rifle, without that information it is not possible to give an estimate of value. So I am posting a Daisy link to give you an answer ( See the Link Below.)
Red Ryder BB Gun was created in 1938.
An original Red Ryder cost somewhere around $2.50 to $3.00. This would be a No. 111 model 40. The Red Ryder started production in 1939.
Red Ryder BB gun .
Typically the Red Ryder sells for around $30 - $35
Red Ryder BB gun .
The traditional Daisy Red Ryder BB Gun sells for $31 at Walmart
Ralphie says that he wanted the "Red Ryder BB Gun" 28 times.
Piston and spring.
The classic Red Ryder is a BB gun that shoots metal .177 caliber BBs.
The red ryder no 111 was made from 1939 to 1971. Then it became the 1938 model from then on to today
The cost varied between models. The Red Ryder didn't exist in the 1930 but a daisy cost around $2.50 and a model 25 cost about $4.50
It was rated at 350 FPS. The same as the Red Ryder BB Rifle