ProMag SIGA1 15-Round 9mm Magazine for Sig Sauer P226 Blued Steel

The ProMag SIGA1 magazine delivers reliable 15-round capacity for Sig Sauer P226 pistols in 9mm Luger. This aftermarket magazine provides shooters with additional ammunition capacity while maintaining proper feeding geometry for consistent performance.

What Makes This Different

Unlike factory magazines that typically hold 10-12 rounds, the SIGA1 extends capacity to 15 rounds without compromising the P226's grip profile. The blued steel construction offers corrosion resistance superior to standard carbon steel alternatives. ProMag's spring tension system maintains consistent feeding pressure throughout the magazine's capacity range, reducing the likelihood of feeding issues common in extended magazines.

Key Features

• 15-round capacity increases ammunition availability by 25-50% over standard magazines
• Blued steel body construction provides durability and corrosion resistance
• Compatible with Sig Sauer P226 pistols chambered in 9mm Luger
• Heat-treated chrome silicon spring maintains tension through repeated loading cycles
• Polymer follower reduces friction and prevents binding during feeding
• Standard magazine catch engagement works with existing P226 controls
• Drop-free design enables rapid magazine changes during shooting sequences

Range testing demonstrates consistent feeding across various 9mm ammunition weights from 115 to 147 grains. The magazine functions reliably in competitive shooting environments where rapid follow-up shots are essential. Law enforcement agencies have adopted similar capacity magazines for duty use, citing the tactical advantage of reduced reload frequency. The steel construction withstands repeated dropping on concrete surfaces without compromising structural integrity.

Technical Specs

• Capacity: 15 rounds
• Caliber: 9mm Luger
• Compatibility: Sig Sauer P226
• Body Material: Blued steel
• Spring: Chrome silicon steel
• Follower: High-impact polymer
• Overall Length: Approximately 5.2 inches
• Manufacturer: ProMag Industries

Shooters seeking increased ammunition capacity for their P226 will find the SIGA1 provides measurable tactical advantages without requiring pistol modifications. The magazine's proven reliability record and steel construction justify the investment for serious shooters who demand consistent performance.