Firearm modifications refer to changes made to a firearm to enhance its performance, usability, or appearance. These modifications can include alterations to the trigger, sights, or barrel, as well as the addition of accessories like scopes or grips. Some modifications aim to improve accuracy, reduce recoil, or increase the firearm's overall efficiency. While many firearm modifications are legal, they must comply with local and federal laws. Certain changes, such as converting a firearm to fully automatic, may be restricted or require special permits. It is essential for firearm owners to understand the regulations surrounding modifications to ensure safe and lawful use.