SIG SAUER P229 E2 9mm 15-Round Flush-Fit Magazine

SIG SAUER P229 E2 9mm 15-Round Flush-Fit Magazine

This factory SIG SAUER magazine is configured for 9mm P229 E2 and updated P229 models. It provides a 15-round capacity in a double-stack, flush-fit design, making it suitable as a replacement for a matching factory magazine or as an additional magazine for training and range use.

The exact item is SIG SAUER part number MAG-229-9-15-E2, also shown in distributor catalogs as MAG229915E2, with UPC 798681421749. Confirming the full identifier is important because SIG SAUER has produced both legacy and updated P229 magazine patterns. Similar capacity and caliber markings do not automatically establish compatibility.

For E2 and Updated P229 Models

SIG SAUER specifies this magazine for P229 pistols chambered in 9mm that use the E2 or updated P229-1 magazine pattern. It is not identified as the magazine for older legacy-pattern P229 pistols. Before purchase, inspect the markings on an existing factory magazine, consult the pistol’s documentation, or contact SIG SAUER with the firearm’s serial number if the magazine pattern is uncertain.

The flush-fit shape is intended to seat at the bottom of the compatible compact grip without the extended body used on higher-capacity magazines. Aftermarket grips, magazine wells, and base components can affect fit, so a modified pistol should be checked against the accessory maker’s compatibility guidance.

Steel Construction and Witness Holes

The magazine uses a steel body with a black manganese-phosphate finish. SIG SAUER lists rear witness holes, which provide a quick visual reference for the loaded round count. The double-stack body feeds cartridges toward the top of the magazine while maintaining the dimensions required for the updated P229 magazine well.

SIG SAUER notes that its magazines may be sourced from more than one manufacturer while still being produced to the company’s specifications. As a result, minor differences in stamping or finish shade may occur without changing the intended model, caliber, or capacity. Use the part number and fit specification rather than relying only on small cosmetic details.

Function Checking and Maintenance

Before use, inspect the body, feed lips, follower, spring tension, witness holes, and base area. With the pistol unloaded and pointed in a safe direction, insert the empty magazine to confirm positive engagement and normal release. Load only the stated 15-round capacity, then function-test the magazine with the intended P229 at a controlled range before relying on it for defensive use.

Keep the magazine clean and dry. Lint, unburned powder, and grit can restrict follower movement. If the magazine must be disassembled, follow SIG SAUER’s instructions and carefully control the base and spring during removal. Avoid excessive lubricant inside the body because it can attract residue and contact ammunition. Any magazine that is dented, cracked, heavily corroded, or repeatedly associated with feeding problems should be removed from service for inspection.

Product Details

• Manufacturer: SIG SAUER
• Compatible model: P229 E2 and updated P229/P229-1 models
• Caliber: 9mm Luger
• Capacity: 15 rounds
• Magazine type: Double-stack detachable magazine
• Fit: Flush fit
• Material: Steel
• Finish: Black manganese phosphate
• Witness holes: Rear witness holes
• Quantity: One magazine
• Part number: MAG-229-9-15-E2 / MAG229915E2
• UPC: 798681421749

This listing includes one magazine. The pistol and ammunition are not included. Magazine-capacity and shipping laws vary; verify that this 15-round magazine is legal to purchase, receive, possess, and use in your jurisdiction before ordering.