### Question
How is the "firearm" defined?


### Answer
The term **firearm** is defined in *18 U.S.C. § 921* as follows -

> (A) any weapon (including a starter gun) which will or is designed to or may readily be converted to expel a projectile by the action of an explosive

#### Citation:
  - *18 U.S.C. § 921*
  - Heading: **PART I-CRIMES > CHAPTER 44-FIREARMS**

