SIG SAUER P226 .40 S&W/.357 SIG 12-Round Magazine

SIG SAUER P226 .40 S&W/.357 SIG 12-Round Factory Magazine

Keep a proven service pistol supplied with a magazine built for its original operating system. The SIG SAUER P226 12-round magazine is a factory replacement for P226 pistols chambered in .40 S&W or .357 SIG. Manufacturer part number MAG2264312 and UPC 798681222186 identify this specific full-capacity, blued-steel configuration.

This magazine is made for shooters who want an original-pattern fit for training, competition preparation, duty-equipment rotation, or maintaining a dependable spare. Its 12-round capacity matches the standard configuration commonly used with compatible P226 pistols in these two related calibers. The steel body provides the rigidity expected from a service-pistol magazine, while the blued finish gives the exterior a traditional dark appearance and a measure of surface protection.

Purpose-Built P226 Compatibility

The magazine is designed for the SIG SAUER P226 platform and supports both .40 S&W and .357 SIG ammunition. Those cartridges share the magazine format used in compatible P226 models, allowing this one factory magazine to serve either chambering. It is not presented as a universal SIG magazine; buyers should confirm their pistol model and caliber markings before ordering.

A correctly matched magazine matters because feed-lip geometry, follower travel, spring tension, and magazine-body dimensions all work together during the feeding cycle. Choosing the exact P226 magazine avoids the uncertainty that can come with a similar-looking magazine intended for another SIG pistol family.

Practical Factory-Magazine Features

• 12-round capacity: Standard-capacity configuration for compatible P226 pistols.
• Dual-caliber application: Intended for .40 S&W and .357 SIG P226 variants.
• Steel construction: Rigid magazine body suited to repeated loading and normal range use.
• Blued finish: Dark, low-glare exterior that matches the classic service-magazine appearance.
• Detachable design: Direct replacement or additional magazine for the correct P226 configuration.
• Factory identification: MPN MAG2264312 and UPC 798681222186 simplify exact-match verification.

Range, Duty, and Spare-Magazine Use

Additional magazines reduce loading interruptions during practice and make it easier to separate training magazines from those reserved for other uses. A factory replacement is also useful when retiring a worn magazine, diagnosing feeding issues, or assembling a consistent set of magazines for drills. As with any magazine, inspect the body, feed lips, follower, and base area regularly, and keep the interior free of excessive debris or lubricant.

Before use, verify that the unloaded magazine seats and releases normally in your specific pistol. Load only the correct ammunition, follow the firearm manufacturer’s instructions, and observe all applicable magazine-capacity restrictions. This listing is for one SIG SAUER P226 magazine; ammunition and firearm are not included.

Specifications

• Manufacturer: SIG SAUER
• Model fit: P226
• Calibers: .40 S&W and .357 SIG
• Capacity: 12 rounds
• Material: Steel
• Finish: Blued
• Type: Detachable pistol magazine
• Manufacturer part number: MAG2264312
• UPC: 798681222186
• Quantity: One magazine