What type of magazine does the M9 utilize?

The M9 utilizes a detachable magazine, which is a critical feature for this type of firearm. A detachable magazine allows the shooter to quickly and efficiently remove and replace the magazine, facilitating faster reloading during engagements. This design enhances the operational efficiency of the M9, enabling users to maintain a high rate of fire and to easily swap out magazines as needed. The ability to detach the magazine also supports various operational scenarios, especially in tactical settings where speed and adaptability are crucial.

In contrast, a fixed magazine would require the shooter to load ammunition directly into the firearm, making reloading more cumbersome. Reversible magazines are not a common configuration in most firearms, including the M9, and a stripper clip is a tool designed for loading ammunition into a fixed magazine rather than being a type of magazine itself. Therefore, the choice of a detachable magazine aligns with the operational requirements and design philosophy of the M9.