You can contact Ruger's customer service to find out.
The Ruger website, under Customer Service, has a downloadable owners manual for your Mini 14.
580 is the newer version of the Mini 14 Ranch, minor engineering changes, improved accuracy, etc.
$350 to $800, depending on WHICH Mini-14, and condition.
If you go to Ruger's website you can download the manual for your mini 14 for free. It tells how to disassemble your gun in the manual.
The Ruger Mini-14 with serial number 18048453 was manufactured in the early 1980s, specifically around 1982. Ruger began using the 180 series of serial numbers in 1977, and the production of this series continued until 1985. Therefore, the age of this particular rifle would be approximately 41 years as of 2023.
Ruger has sn data on its website.
You will have to call Ruger.
It says it can on Ruger's website.
You haven't asked a question.
Alot of Bucks.
You will have to call Ruger for the age; 100-400
Call Ruger and they will tell you.