1913 Picatinny Weaver....

[Nightcrawler]

Okay, I'm confused on all of this scope mount nomenclature. I hear 1913 model rail, Picatinny rail, Picatinny Weaver rail...I'm confused. Which is which, what's the difference, and where do these names come from? What does 1913 mean? Who is Weaver?

 

[Art Eatman]

Mr. Weaver is long dead, but he got into the scope/rings/bases business before WW II. Through various iterations, the products and name lives on.

The dealie on top of a Bushmaster "flat top" is an example of a Picatinny rail, if you check out their website. SFAIK, all these rails accept Weaver or Weaver-style rings. I believe the name comes from the arsenal of that name where the idea was dreamed up; not really sure.

These rails also can be mounted alongside or below the forearm/barrel and all manner of gizmos can be attached.

FWIW, Art