Description
The SIG SAUER P320 30-round extended magazine gives compatible 9mm P320 owners a higher-capacity factory magazine in a coyote-tan configuration. It is designed for the P320 platform and holds 30 rounds of 9mm ammunition, making it a practical option for range sessions, training blocks and other lawful uses where fewer magazine changes are desirable. The extended body is easy to distinguish from standard-capacity magazines, while the coyote color coordinates with many P320 grip modules and accessories.
Extended Capacity for the P320
This magazine is purpose-built for SIG SAUER P320 pistols chambered in 9mm. Its 30-round capacity places it well beyond the profile of a flush-fitting magazine, so buyers should expect the magazine to extend noticeably below the grip when seated. That added length is the tradeoff for substantially greater capacity and can also make the magazine easier to identify in a range bag or organized storage system.
The coyote finish provides an alternative to the more common black magazine and helps distinguish this exact variant from SIG SAUER part number 8900576, the related black 30-round version. This listing is specifically for the coyote model identified by manufacturer part number 8900577 and UPC 798681649938.
Range and Training Utility
An extended magazine can reduce interruptions during drills that call for longer strings of fire, and it can serve as a convenient spare for owners who already use the P320 platform. Because it is a factory SIG SAUER configuration rather than a universal aftermarket magazine, the fit and geometry are intended around the P320 magazine well and 9mm cartridge.
Before use, verify that the pistol is a compatible 9mm P320 configuration and that the magazine locks securely into the unloaded firearm. Inspect the magazine body, feed lips and base area periodically, and keep the interior free from grit, fouling and excess lubricant. Follow the firearm and magazine manufacturer’s instructions for loading, cleaning and storage. Do not attempt to force the magazine into a firearm of a different model or caliber.
Key Features
- Factory SIG SAUER extended magazine for the P320 platform
- Caliber: 9mm
- Capacity: 30 rounds
- Coyote-tan color
- Extended-body configuration
- Manufacturer part number: 8900577
- UPC: 798681649938
- Quantity: one magazine
Magazine-capacity limits and shipping rules vary by jurisdiction and can change. Confirm that possession, purchase and delivery of a 30-round magazine are lawful at the destination before ordering. This product is a magazine only; no firearm, ammunition or other accessories are included.




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