Rock Island ACT-MAG 17rd 9mm Magazine Beretta 92FS/M9 Blued

The Rock Island ACT-MAG 17-round magazine extends the capacity of Beretta 92FS and M9 pistols beyond the standard 15-round configuration. This aftermarket magazine provides additional firepower for competitive shooting, duty applications, and extended range sessions where frequent reloading interrupts performance.

What Makes This Different

The ACT-MAG design incorporates a reinforced steel body with blued finish that resists corrosion better than standard phosphate coatings. The magazine spring maintains consistent tension through the extended capacity range, reducing feed failures common in stretched factory springs. Internal geometry matches Beretta specifications for reliable chambering of various 9mm ammunition weights from 115 to 147 grains.

Key Features

• 17-round capacity increases firepower by 13% over standard magazines
• Blued steel construction provides enhanced corrosion resistance
• Drop-free design ensures rapid reloads during competitions
• Compatible with Beretta 92FS, M9, and similar 92-series pistols
• Witness holes allow visual ammunition count verification
• Anti-tilt follower prevents nose-diving and feed jams
• Reinforced magazine lips resist deformation from repeated loading

Field testing demonstrates reliable feeding across multiple ammunition manufacturers including Federal, Winchester, and Speer loads. The magazine functions in temperatures from -10°F to 140°F without spring tension loss. Competition shooters report consistent performance through 500+ round training sessions. The extended baseplate provides positive grip surface for tactical reloads under stress conditions.

Technical Specs

• Capacity: 17 rounds of 9mm Luger ammunition
• Construction: Heat-treated steel body with blued finish
• Compatibility: Beretta 92FS, M9, 92A1, 92X series pistols
• Overall length: Approximately 5.2 inches
• Weight: 4.1 ounces unloaded
• Spring: High-tensile steel with anti-fatigue coating
• Follower: Polymer with anti-tilt design
• Country of origin: Philippines

The Rock Island ACT-MAG represents proven aftermarket engineering at a competitive price point. Professional armorers stock these magazines for departments transitioning to higher-capacity configurations. Limited production runs make availability sporadic across distributors.