MAGEX2 EXTENSION KIT 9MM FDE KVA-MX2K90FD00 Manufacturer Model Number: KVA-MX2K90FD00 Manufacturer: Kriss USA Model: MagEx2 Extension Caliber: 9mm Type: Accessory-Magazines Item Type: Accessory Finish: FDE Shipping Weight: 0.3 Feature: Fits G17 Magazines Feature: +23 rd. Extension Feature: 40 rd. Total Capacity Optic Adjustable Objective: false Optic Reticle Illuminated: false