PROMAG GLK 22/23/27 MAG 27RD BLACK POLYMER Manufacturer Model Number: GLK-A13 Manufacturer: ProMag Model: Glock 40s&w Pistol Mag Caliber: 40 S&W Type: Accessory-Magazines Item Type: Accessory Firearm / Accessory Capacity: 27 Shipping Weight: 0.3 Feature: Polymer Feature: Fits Glock 22/23/27 Optic Adjustable Objective: false Optic Reticle Illuminated: false