I recently purchased, at an estate auction, a rifle with the following markings on the barrel -- Flaig's 7mm Rem Mag ....... FN Action Made in Belgium. It is in pristine condition.

It has a Weaver K6 - C3 scope and no fixed front or rear sights came with it.

Have three questions: Where might I purchase the fixed sights?; What might the age be or where may I find some written material to determine the age?; and, What might be the value?

Thanks for any info you might be able to provide.