Mossberg surprised the firearms world in 2019 with the introduction of the company’s first handgun in 100 years, the MC1sc (which stands for Mossberg Carry 1, Subcompact). Doubters who asked “Does the market really have room for another striker-fired 9mm?” were proven wrong, as the affordably-priced MC1sc flew off shelves. My own testing of this gun showed it to be a well-thought-out design with an excellent trigger.

For 2020, Mossberg built on the success of the MC1 and...