This is a factory .45 ACP 6-round magazine for Sub Compact Sig P250/P320 pistols.
Sig Sauer’s P320 pistol (based on the P250 frame) is the Army’s new sidearm of choice, and the ultimate in striker-fired, modular handguns—thanks in no small part to its reliable factory magazine.
These magazines combine the ultimate in concealability and firepower with six rounds of heavy-hitting .45 ACP in a sub compact package. Constructed from durable carbon steel with a special anti-friction coating, these magazines tuck away easily and give you firepower when you need it.
Remember to rotate loaded/carry magazines every 3-6 months in order to maximize reliability.