Description
The ST-model nut is compatible with the following 12 gauge shotguns:
- Stoeger M2000 (newer versions)
 - Franchi Affinity (all models)
 - Franchi Intensity
 - Franchi 612/I-12
 
The MXT extension nut allows for installation of a Nordic Components MXT 12ga shotgun extension tube kit. The nut replaces the factory magazine cap, and is required for installation of the extension tube kit.
            
        Description
The ST-model nut is compatible with the following 12 gauge shotguns: