The arrangement and interplay of springs within the trigger mechanism of an AR-15 platform rifle determines the feel and function of the trigger pull. This includes the hammer spring, trigger spring, disconnector spring, and potentially others depending on the specific trigger group. Different spring weights and designs can significantly alter trigger pull weight, reset speed, and overall performance.
Properly balanced and functioning springs are essential for safe and reliable firearm operation. A well-tuned trigger mechanism contributes to accuracy by minimizing shooter-induced disturbance during firing. The historical development of trigger mechanisms reflects a continuous pursuit of improved accuracy, reliability, and shooter control. Modifying these components can impact the rifle’s performance and safety, and should only be undertaken by knowledgeable individuals or qualified gunsmiths.