They started to make this rifle in 1949 and stopped in 1990 ( sheridan sliverstreak model ) During the 1990's the name changed to C9 sliverstreak and C9 bluestreak.
the proper size
In most states you must be 18 years old
In most states you must be 18 years old
In most states, you just have to be 18 years old.
If you are talking about Air Soft guns, 18 years old to buy one.
What model is it. How old is it, what condition is it in, is it still working?
Depends on where you live but usually you have to be 18 to purchase one
The model 132 was made from 1942 to 1986.
In the Unites States you have to be 18 to purchase a pellet or BB gun, but you can be any age to shoot it under adult supervision.
25-75 USD
Crosman corp took over Benjamin Sheardon a long time ago. Fortunately they offer manuals on almost all of their rifles that they have made. The Silver Streak is part of the "C9" series of rifles. Go towww.crosman.com and click on "Download a manual" and select the "Benjamin Sheardon" section of manuals. You will find your rifle there. see the related link
You can't. You will have to sell your old air gun, then use the money towards a new PCP air rifle.