Second Amendment Armory Dictionary

Welcome to the Second Amendment Armory's dictionary. You can use this page to find the definition of words or abbreviations related to firearms. You can search the dictionary by entering a word, partial word, a word or combinations of words. Or, you can view all the words in the dictionary realted to a specificc letter. If you have suggestions for new terms, abbreviations, or deifnitions, please contact us at questions@saarmory.com.

Use the buttons to view all of the definitions of the words in the dictionary that start with that letter.

I.O. Inc.

I.O.Incorporated manufactures high quality firearms near Charlotte, North Carolina. It distributes its products through major distributors, including Davidsons.

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IAC

Interstate Arms Corp, located in Watertown, Massachusetts, is a leading distributor supplying retail gun shops nationwide with firearms and accessories.

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Improved Cylinder

Even less constricted than modified, the improved cylinder distributes approximately 50 percent of a shell's total pellets in a 30-inch circle at 40 yards. This often is the choice of hunters shooting waterfowl close over decoys or pursuing close-quarters upland birds such as quail, grouse and pheasants. Rifled slugs usually perform well with this choke.

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Iron Sights

Metallic sights on a gun. The term is used to differentiate them from optical sights (scopes).

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