This detachable magazine is constructed of steel with a black finish and fits flush. It is compatible with your Sig P365 Micro-Compact pistol. This model has a 12-round capacity and features a finger extension Specifications and Features: Caliber: 9mm Luger Capacity: 12 Finish: Blued Model: P365 Micro-Compact Material: Steel Type: Detachable Model Fit: P365 Brand Fit: Sig Sauer Capacity: 12