MK45 Mod 1 and 2 gun rounds are divided into how many components?

• A. 3 components
• B. 2 components
• C. 4 components
• D. 5 components

Answer: (B)

Rounds for the MK45 Mod 1 and Mod 2 are described as two components: the projectile and the cartridge. The projectile is the bullet, and the cartridge is the case that contains the propellant and the primer. When fired, the primer ignites the propellant inside the cartridge, generating gas to propel the bullet. This two-component framing is how these rounds are typically discussed for quick identification and handling, rather than breaking the round into four separate parts.