Herrington Arms Glock 19/26 2 Round Magazine Extension FDE. Specifications for Herrington Arms Glock 19/26 2 Round Magazine Extension: Manufacturer: Herrington Arms Fabric/Material: 7075 Aluminum Magazine Capacity: 2 Round Caliber: 9mm Luger Gun Make: Glock Gun Model: Glock 17 Glock 26 Glock 19 Condition: Factory DEMO Gun Type: Pistol Features of Herrington Arms Glock 19/26 2 Round Magazine Extension Lifetime Warranty +2 Mag Extension Gives You The Edge You Need When You Need Even More Capacity 7075 Aluminum Provides Highly Durable But Also A Lightweight Product +2 Mag Extensions Utilize Oem Mag Springs Does Not Come With Magazine Not Recommended For Use With Gen 1-3 Oem Glock Mags If Using A Magwell Does Not Fit Magpul Gl9 Magazines Package Contents: Herrington Arms Glock 19/26 2 Round Magazine Extension What firearm models does the manufacturer say Herrington Arms Glock 19/26 2 Round Magazine Extension is compatible with? The manufacturer says that Herrington Arms Glock 19/26 2 Round Magazine Extension is compatible with Glock 19 Glock 26 Glock 17Herrington Arms MAGEXT2-FDE: Glock 19/26 2 Round Magazine Extension FDE