This review explores the Glock 40 MOS in a B&T USW-G chassis, chambered in 10mm Auto, as a potent option for bear country defense. The 10mm caliber offers significant power, approaching .44 Magnum levels, with the advantage of higher capacity and faster follow-up shots compared to revolvers. While the chassis enhances stability and optics mounting, testing revealed potential reliability issues with aftermarket magazine extensions, highlighting the critical need to vet all components before deployment.
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