If guns are your thing - probably most things by John Browning. His designs are basically still in use more than 100 years later. https://en.wikipedia.org/wik

If guns are your thing - probably most things by John Browning. His designs are basically still in use more than 100 years later. https://en.wikipedia.org/wiki/John_Browning https://en.wikipedia.org/wiki/John_Browning