Mec-Gar MGP22810B 10rd 9mm Magazine for Sig P228 Blued Steel

The Mec-Gar MGP22810B delivers reliable feeding and consistent performance for Sig Sauer P228 pistols chambered in 9mm Luger. This factory-specification magazine maintains the same dimensional tolerances and spring tension as original equipment while offering proven durability at a competitive price point.

What Makes This Different

Mec-Gar manufactures magazines for major firearm companies using the same tooling and quality standards as original equipment. The MGP22810B features heat-treated steel construction with a traditional blued finish that resists corrosion better than standard phosphate coatings. Spring geometry matches factory specifications exactly, ensuring consistent bolt hold-open function and reliable chambering across all ammunition weights.

Key Features

• 10-round capacity compliant with restricted states and competition rules
• Heat-treated steel body with corrosion-resistant blued finish
• Factory-specification spring tension for reliable feeding
• Drop-free design with positive lock engagement
• Witness holes for quick round count verification
• Compatible with Sig Sauer P228 and P229 pistols in 9mm
• Made in Italy using original Sig Sauer tooling and specifications

Field testing demonstrates consistent feeding with both ball and hollow point ammunition across temperature ranges from -10°F to 140°F. The magazine maintains proper geometry after repeated loading cycles, with springs rated for over 10,000 compression cycles without significant tension loss. Competition shooters report reliable function through extended courses of fire without feeding interruptions or failure to lock back on empty.

Technical Specs

• Capacity: 10 rounds of 9mm Luger/.380 ACP
• Material: Heat-treated steel body with blued finish
• Spring: Music wire with anti-tilt follower
• Overall Length: 4.5 inches
• Width: 1.18 inches
• Base Plate: Steel with lanyard loop provision
• Compatibility: Sig Sauer P228, P229 (9mm models)
• Country of Origin: Italy

This magazine provides the reliability demanded by law enforcement and competitive shooters while meeting capacity restrictions in regulated jurisdictions. Mec-Gar's reputation for producing OEM magazines ensures drop-in compatibility without modification or fitting.