Pump-Action:
- Internal tube magazine: The standard tube magazine on the Model M172B pump-action shotgun typically has a capacity of around 5 shells (depending on the shell length and configuration).
- Extended tube magazine: Aftermarket companies offer extended tube magazines that can increase the capacity of the shotgun, allowing you to load more shells into the magazine.
Semi-Automatic:
- Detachable box magazine: Some variants of the Model M172B semi-automatic shotgun use detachable box magazines. While the OEM magazines may be difficult to find, companies such as ProMag offer compatible aftermarket magazines for the shotgun.
- Magazine compatibility: The shotgun typically accepts magazines that are compatible with the Mossberg 500 series of shotguns.
As for stock options, here are a few possibilities:
- Original stock: The Model M172B usually comes with a wooden or synthetic stock. If the original stock is damaged or you want a different look, you may be able to find replacement stocks from certain gun parts retailers or suppliers.
- Aftermarket stocks: There are various aftermarket stock options available for the Mossberg 500 series of shotguns, which may be compatible with the Model M172B. These stocks can offer different materials (e.g., wood, synthetic, aluminum), styles (e.g., pistol grip, traditional stock), and features (e.g., adjustable length of pull, recoil reduction systems, etc.).
To ensure compatibility and proper functioning, it is recommended to refer to the specific model and variant of the Western Auto Model M172B that you have. You may also want to consult with a knowledgeable gunsmith or firearms expert to ensure that any aftermarket modifications or replacements maintain safety and reliability.