A firing pin of modified design, intended for use in AR-15 platform rifles, typically aims to improve reliability and performance compared to standard components. These modifications can include alterations to material composition, tip geometry, or overall construction to enhance ignition of cartridges, potentially leading to more consistent primer strikes and reduced chances of misfires.
Reliable ignition is crucial for the proper functioning of any firearm. For AR-15 rifles, often used in demanding applications from competitive shooting to home defense, consistent performance under various conditions is paramount. A component designed for improved ignition can contribute to increased reliability, especially with ammunition that has harder primers. This pursuit of reliability has driven innovation in firing pin design throughout the history of firearms, reflecting the ongoing desire for improved performance and safety.