Ruger website, customer service.
You will have to call Ruger for the age; 100-400
You can call Ruger or visit their website.
Ruger has sn data on their website that you can check.
Ruger has sn data on their web site.
Ruger's website has extensive sn data.
Ruger's web site has sn data.
Ruger has sn data on their web site
Ruger has extensive sn data on their webisite
Ruger has sn data on their web site.
Ruger has sn data on their web site.
Ruger has sn data on their web site.
Ruger's website has a sn function.