The Ruger 10/22 rifle is one of, if not the most popular autoloading rimfire rifle ever produced. The 10 is for the ten rounds in the magazine, and the 22 is for the cartridge the rifle is chambered in (.22 Long Rifle).

gunsmithing note(s):

• • • The trigger/sear slave pin is 1/8″ diameter by 1/2″ long

related:

• • • The 10/22 Companion (book)
    • blog post: The 10/22 Companion (27 Dec 2014)
    • Ruger website https://www.ruger.com/ ⇒
    • Ruger 10/22 webpage
      https://www.ruger.com/products/1022/overview.html ⇒