Where is the butt of the firearm located?

The butt of the firearm is specifically located at the end of the stock and is meant to rest against the shooter's shoulder during firing. This position provides stability and allows for better control of the firearm when aiming and shooting. The stock acts as a support that helps absorb the recoil from firing the weapon, and having the butt pressed against the shoulder enhances the shooter’s comfort and accuracy.

The other options refer to different parts of the firearm, which are not synonymous with the butt. The front of the barrel describes the muzzle area, which is where the bullet exits the firearm. The side of the receiver is part of the firearm's mechanism that houses critical components and does not relate to the shoulder support. Lastly, the magazine is a separate component responsible for holding ammunition but is not related to the butt stock at all. Understanding these distinctions helps clarify the location and purpose of the butt in the context of firearm operation.