Within the AR-15 platform’s lower receiver, the small, coiled component responsible for resetting the trigger mechanism after firing resides within the trigger housing group, interacting directly with both the trigger and hammer. Its precise placement ensures proper function and reliability of the firearm’s action.
This component’s correct positioning is crucial for the rifle’s safe and reliable operation. A properly installed and functioning spring guarantees consistent trigger reset, prevents malfunctions, and contributes to accurate shooting. Understanding its placement is essential for maintenance, repair, and customization of the firearm, especially when addressing trigger pull weight or responsiveness. Over time, this part can wear or break, impacting the rifle’s performance, emphasizing the need for regular inspection and potential replacement.