COLT MAG 1911 OFFICER 9MM 10RD SS

Description

Shooters running a compact 1911 Officer-size pistol chambered in 9mm often face a short supply of factory magazines purpose-built for that platform. This Colt magazine is made specifically for the 1911 Combat Officer and feeds 9mm Luger reliably in a package that fits flush with the shortened grip frame those pistols use. It holds ten rounds, which is a meaningful improvement over the seven- and eight-round counts associated with .45 ACP Officer magazines, giving the 9mm shooter a bit more capacity without adding a protruding extension that alters the carry profile of the gun.

The magazine body is stainless steel, which resists corrosion better than blued steel alternatives and holds up well under the cycle of loading, carry, and repeated drops on concrete or gravel that range use puts on any magazine. A bumper pad is included at the base, cushioning the floor plate on drops and giving the firing hand a slightly more positive purchase when seating the magazine under stress. These details matter more on a carry gun than on a range pistol, where rough handling is the norm rather than the exception.

Because this is a factory Colt part, the feed lips and follower geometry are matched to the tolerances Colt specifies for the platform. That matters for 9mm in a 1911, where the cartridge’s tapered case profile requires a different internal geometry than the straight-walled .45 ACP the platform was originally designed around. Running an incorrectly specced magazine in a 9mm 1911 is one of the more common sources of feeding failures with this type of pistol. Sticking with the manufacturer’s own magazine eliminates that variable.