Shield Arms S15 Gen 3 Glock 43X/G48 9mm Luger 15 Round w/ 2 Round Mag Extension Pistol Magazine Black. This factory-assembled package combines our patented S15 Gen 3 Magazine with a precision-installed +2 magazine extension delivering an impressive 17+1 total capacity. Each unit is professionally assembled by our team to ensure optimal performance and reliability from the first round. Specifications for Shield Arms S15 Gen 3 Glock 43X/G48 9mm Luger 15 Round w/ 2 Round Mag Extension Pistol Magazine: Manufacturer: Shield Arms Gun Make: Glock Gun Model: Glock 48 Glock 43X Caliber: 9mm Luger Magazine Capacity: 17 Round Color: Black Finish: Anodized Fabric/Material: 6061 Aluminum Features of Shield Arms S15 Gen 3 Glock 43X/G48 9mm Luger 15 Round w/ 2 Round Mag Extension Pistol Magazine: Unique easy access floor plate design to service or clean the magazine body without the need to remove the magazine extension from the magazine body. Index cuts on the extension body to increase grip when coming out of a magazine pouch. Machined from billet 6061 aluminum Type 2 anodized Adds 2 rounds to Shield Arms S15 Gen 3 Nitrocarb magazine Comes with a 11 coil plus power spring Fits most aftermarket flared mag wells Lifetime warranty Package Contents: Shield Arms S15 Gen 3 Glock 43X/G48 9mm Luger 15 Round w/ 2 Round Mag Extension Pistol Magazine What firearm models does the manufacturer say Shield Arms S15 Gen 3 Glock 43X/G48 9mm Luger 15 Round w/ 2 Round Mag Extension Pistol Magazine is compatible with? The manufacturer suggests that Shield Arms S15 Gen 3 Glock 43X/G48 9mm Luger 15 Round w/ 2 Round Mag Extension Pistol Magazine is compatible with Glock 43X Glock 48Shield Arms S15-ME-2INS-G3-BLK: S15 Gen 3 Glock 43X/G48 9mm Luger 15 Round w/ 2 Round Mag Extension Pistol Magazine Black