The Armscor/Rock Island Armory double-stacked replacement magazine is made for full-size 1911 pistols chambered in .45 ACP and is offered as a higher-capacity factory-style spare. Constructed of metal to match Armscor/ACT MAG specifications and tolerances, it is intended to fit standard 1911 platforms and provide consistent feeding for range, training, or service use. Multiple vendor records describe this as a detachable, high-capacity replacement magazine compatible with Rock Island 1911 models.
Key Specifications
- The caliber is .45 ACP.
- The capacity is 13 rounds.
- Designed to fit 1911 pistols.
- Brand-fit is listed as Rock Island.
- The material is specified as metal.
- The product type is detachable magazine.
- Finish information varies by source; see notes for details and verification.
- Manufactured to Armscor/ACT MAG specifications according to vendor descriptions.
- Package or listed weight is 0.15.
This magazine serves as a practical spare or replacement for owners of 1911 pistols chambered in .45 ACP who require a factory-style, higher-capacity magazine built to match OEM tolerances. Its metal construction and design intent make it a straightforward option for range use and maintaining an inventory of serviceable magazines.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.




