This extension nut allows for installation of a Nordic Components 20ga shotgun extension tube kit. The nut replaces the factory magazine cap, and is required for installation of the extension tube kit.
The BG-model nut is compatible with the following 20 gauge shotguns:
- Winchester SX2/SX3
- Browning Gold
- Browning Silver
Note: This nut will also be compatible with other shotguns utilizing the same factory magazine thread pattern, but may require modification/fabrication for proper installation. Nordic Components does not have specific information regarding compatibility beyond the models listed in this description.