sight, aperture

Aperture sights are metallic sights with a design that uses a disc with a hole in to align a gun to its intended target.1

aka:

      • peep sight2
      • receiver sight (if the rear sight is mounted on a receiver)3

related:

 

footnotes/sources:

  1. “Glossary.” ⇒ﾠ Sporting Arms and Ammunition Manufacturers’ Institute.ﾠEd. SAAMI’s Technical Committee. Web. 15-18 Jan. 2011.
  2. “Glossary.” ⇒ﾠ Sporting Arms and Ammunition Manufacturers’ Institute.ﾠEd. SAAMI’s Technical Committee. Web. 15-18 Jan. 2011.
  3. “Glossary.” ⇒ﾠ Sporting Arms and Ammunition Manufacturers’ Institute.ﾠEd. SAAMI’s Technical Committee. Web. 15-18 Jan. 2011.

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