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.
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-12/712/912
Any magazine dimples or spring retaining devices will need to be smoothed or removed to allow proper function.
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