The Nordic Components EXTENSION TUBE SPRING 45'' 12 GA is a rugged, purpose-built spring designed to support reliable cycling and smooth operation of shotgun magazine tubes in long gun platforms. Engineered in black and crafted to match the 12GA/20GA extension tube configurations, this spring offers dependable tension and consistent performance under varied field and range conditions, making it a dependable upgrade for hunters and shooters who demand steadiness in their pump or semi-automatic platforms. The spring is sized to fit standard extension tubes, helping maintain proper feed timing and reducing the likelihood of tube-related malfunctions during rapid follow-up shots or high-volume scenarios. Its straightforward design emphasizes durability and ease of installation, enabling proficient users to refresh worn components without extensive modification. Whether youre optimizing a trusted hunting setup or maintaining a high-use range gun, this spring contributes to dependable cycling, reduced bolt hang-ups, and improved overall reliability. Nordic Components focus on functional, field-ready parts ensures compatibility with compatible shotgun configurations while delivering consistent performance across use cases.