The Ruger JMX-1 rotary magazine is designed for rimfire magnum cartridges and serves as a direct replacement or spare magazine for compatible Ruger rimfire platforms. It accepts .22 WMR and .17 HMR cartridges and delivers a compact, multi-round capacity in a rotary format. The magazine features a polymer body mated to a steel feed component and is produced in the United States. Intended for use with Ruger 77/17, 77/22 and American Rimfire models, the JMX-1 provides a dedicated rimfire feeding solution.
Key Specifications
- The capacity is 9 rounds.
- Compatible calibers are .22 WMR and .17 HMR.
- The model designation is JMX-1.
- Compatible firearm models include Ruger 77/17, 77/22 and American Rimfire.
- Construction uses a polymer body with a steel feed component.
- The magazine type is rotary.
- Country of origin is United States.
- Overall dimensions are 1.60 x 3.45 x 7.35 inches.
- The listed weight is approximately 0.2 lb.
As a compact, purpose-built spare or replacement magazine, the JMX-1 offers reliable rotary feeding and a nine-round capacity suited to range work, small-game field use, and general rimfire shooting where a durable, dedicated magazine is needed.
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