ProMag Glock 17 9mm 50rd Drum Magazine, Black Overview: The ProMag 50-round drum magazine is an extended-capacity 9mm magazine designed for Glock-pattern pistols and compatible pistol-caliber carbines. It provides significantly increased ammunition capacity for range shooting, training sessions, and recreational use in compatible platforms. Key Features: 50-round drum capacity: High-capacity design reduces reload frequency during extended shooting. Glock-pattern compatibility: Fits multiple double-stack 9mm Glock pistols and PCC platforms. Impact-resistant polymer body: Durable construction designed to withstand repeated use. Steel internal components: Stainless and heat-treated steel parts support feeding reliability. Wound spring system: High-tension spring assembly ensures controlled cartridge feeding. Integrated loading crank: Built-in assist mechanism simplifies and speeds up loading. Lifetime warranty: Backed by ProMag replacement guarantee. Specifications: Manufacturer: ProMag Category: Drum Magazine Caliber: 9mm Luger Capacity: 50 Rounds Material: Impact-Resistant Polymer with Steel Internal Components Loading System: Manual crank assist Color: Black Compatible Firearms: Glock 17 Glock 18 Glock 19 Glock 26 Glock 34 Glock 45 Glock 47 AR-9 Glock-pattern carbines Kel-Tec SUB-2000/19 KRISS Vector Shadow Systems CR920 Applications: Range shooting: Extended capacity for long practice sessions Training use: Minimizes reload interruptions Recreational shooting: High-capacity option for compatible platforms Carbine setups: Works with Glock-mag-fed PCC systems Additional Features: High-capacity drum design: Maximizes round count per reload Durable construction: Reinforced polymer and steel components Loading assist crank: Improves usability and loading speed Break-in period note: Spring tension may require initial use for optimal function SKU: DRM-A11UPC: 708279014383