The Springfield XDS .45 ACP is a compact, single-stack pistol chambered in .45 ACP, designed primarily for concealed carry and self-defense. Part of the Springfield XD series, the XDS is known for its slim profile, reliable performance, and powerful .45 ACP round, offering a balance of stopping power and ease of concealability. 

The standard magazine holds 5+1 rounds of .45 ACP ammo, though an extended magazine (often 7+1) is available for those who want more capacity.