SIG SAUER MPX 9mm 35-Round Magazine

Description

SIG SAUER MPX 9mm 35-Round Magazine

The SIG SAUER MPX 35-round magazine gives MPX owners additional capacity in a factory-designed feeding system. Developed specifically for the 9mm MPX platform, it combines durable metal feed lips with a lightweight polymer body and polymer baseplate. The result is a magazine designed to retain its shape while providing the feed-lip strength expected from a metal component.

This listing is for SIG SAUER manufacturer part number 8901025, UPC 798681666997. SIG identifies the magazine as compatible with all generations of the SIG MPX. It is chambered for 9mm Luger, holds 35 rounds, and has a black finish.

Factory MPX Compatibility

Magazine geometry is central to reliable feeding, especially in a high-capacity platform. This magazine was developed by SIG SAUER for the MPX rather than adapted from another firearm. The factory configuration provides the correct body shape, feed-lip geometry, and magazine-catch interface for the MPX family. Compatibility across MPX generations makes it a practical choice for replacing a worn magazine or adding capacity for training, competition, or range use.

Hybrid Metal-and-Polymer Design

The enhanced design uses metal feed lips for durability in the area that controls cartridge presentation. The polymer magazine body keeps weight down while providing shape retention and resistance to routine handling. A polymer baseplate closes the assembly and provides a broad lower surface for grasping the magazine during loading, unloading, or removal.

Key Features

• Factory SIG SAUER magazine for the MPX platform
• Compatible with all generations of SIG MPX firearms
• 9mm Luger chambering
• 35-round capacity
• Double-stack configuration
• Metal feed lips for enhanced durability
• Lightweight polymer body
• Polymer baseplate
• Black finish
• Quantity: one magazine

Use and Maintenance

Before loading, verify that the ammunition is factory-specification 9mm Luger and that the magazine body, feed lips, and baseplate are free from damage. Load cartridges in the correct orientation without exceeding the stated capacity. A compatible magazine loader can reduce thumb pressure during longer range sessions, but the loader should never be used to force a cartridge past unusual resistance.

Keep the magazine clean and dry, particularly around the feed lips and follower path. Dirt, unburned powder, and other debris can interfere with follower movement or cartridge presentation. Follow SIG SAUER’s instructions before disassembling the magazine, and avoid oils or cleaners that may attract grit or degrade polymer components. Replace the magazine if the body is cracked, the feed lips are bent or damaged, or the baseplate no longer locks securely.

Legal and Shipping Considerations

This is a 35-round magazine and may be restricted in some states, counties, cities, or other jurisdictions. Buyers are responsible for confirming that possession, purchase, and delivery are legal at the destination. Store policy and carrier limitations may prevent shipment to certain locations even when other firearm accessories can be delivered there.

What’s Included

• One SIG SAUER MPX 9mm 35-round magazine

For MPX owners who want factory fit, increased capacity, and a durable hybrid construction, SIG SAUER part 8901025 offers a current-production 35-round magazine compatible with every MPX generation.