The ProMag ROC01 delivers reliable feeding and extended capacity for Rock Island Armory Baby Rock pistols chambered in .380 ACP. This aftermarket magazine addresses the common need for additional magazines while providing the same 7-round capacity as factory options. Built with heat-treated steel construction and a polymer follower, it maintains consistent performance across extended shooting sessions.
What Makes This Different
Unlike basic replacement magazines, the ROC01 features a reinforced spring system engineered specifically for the Baby Rock's feeding geometry. The magazine body utilizes precision-formed steel with anti-corrosion coating that resists environmental wear. ProMag's manufacturing process includes dimensional verification to ensure proper lockup and reliable ejection, addressing common aftermarket magazine issues like feeding failures and improper seating.
Key Features
- 7-round capacity matches factory specifications for Rock Island Baby Rock pistols
- Heat-treated steel construction with corrosion-resistant blue finish
- High-impact polymer follower reduces friction and binding
- Precision-wound spring maintains consistent tension through full capacity
- Drop-free design ensures reliable tactical reloads
- Witness holes allow quick visual capacity verification
- Compatible with all Rock Island Armory Baby Rock .380 ACP variants
Range testing demonstrates consistent feeding with various .380 ACP ammunition types, from 90-grain FMJ to 95-grain hollow points. The magazine functions reliably in both rapid-fire competition scenarios and precision shooting applications. The steel construction withstands repeated loading cycles without spring fatigue, while the polymer follower maintains smooth operation even when exposed to powder residue and environmental contaminants.
Technical Specs
- Caliber: .380 ACP
- Capacity: 7 rounds
- Construction: Heat-treated steel body with polymer follower
- Finish: Corrosion-resistant blue coating
- Compatibility: Rock Island Armory Baby Rock pistols
- Weight: Approximately 3.2 ounces empty
- Country of Origin: USA
- Manufacturer: ProMag Industries
The ROC01 provides shooters with a cost-effective magazine solution that maintains factory-level reliability. ProMag's established reputation in the aftermarket magazine sector, combined with specific engineering for the Baby Rock platform, makes this an intelligent choice for backup magazines or range use.