I got a customized 1994 commander for $400 in 1999.
At 3% compounded that would be (1.03 )^20 ($400) = $722

Colt revolvers appreciate more than 3%, so that price might be low.

There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. -Ernest Hemingway
The man who makes no mistakes does not usually make anything.-- Edward John Phelps