MAGEX2 EXTENSION KIT 45ACP FDE KVA-MX2K45FD00 Manufacturer Model Number: KVA-MX2K45FD00 Manufacturer: Kriss USA Model: MagEx2 Extension Caliber: 45 ACP Type: Accessory-Magazines Item Type: Accessory Finish: FDE Weight: .3 lbs Shipping Weight: 0.25 Feature: Fits G21 Magazines Feature: +17 rd. Extension Feature: 30 rd. Total Capacity Optic Adjustable Objective: false Optic Reticle Illuminated: false