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Magpul PMAG D 50 GL9 9mm 50 Round Drum Magazine for Glock Double Stack Pistols Black MAG1033 BLK UPC 840815132325
Product Description
The Magpul® PMAG® D-50® GL9® – GLOCK® (SKU: MAG1033-BLK / UPC: 840815132325) delivers 50 rounds of 9x19mm Parabellum firepower in a compact, balanced drum configuration engineered specifically for double-stack Glock-pattern handguns. Purpose-built with an extended feed tower to seat securely inside pistol grip wells without bottoming out against the frame, the D-50 GL9 maintains a manageable vertical profile compared to oversized 33-round stick magazines while keeping center-of-gravity close to the shooter's firing hand.
Constructed from Magpul's proprietary next-generation impact- and crush-resistant polymer, the D-50 GL9 housing shrugs off hard drops, extreme temperature swings, and harsh cleaning solvents. Inside, heavy-duty corrosion-resistant stainless-steel internals and a high-visibility follower ensure consistent cartridge stack geometry and reliable last-round bolt hold-open on firearms designed to lock back on Glock-pattern followers. Because the internal mainspring stays under zero unnecessary stress until wound, this drum is engineered to remain fully loaded in long-term defensive or duty storage with zero spring set or feed degradation.
Loading all 50 rounds is effortless thanks to an integrated ratcheting loading lever that removes spring tension as each cartridge is dropped into the feed tower. An anti-glare translucent rear window paired with a capacity indication roller gives immediate visual confirmation of remaining ammunition, while a molded paint-pen dot matrix allows clear unit or load identification. Tool-less field stripping requires only a flat-bladed screwdriver, and a slip-on semi-rigid dust cover protects the feed lips from grit and debris during transport.
*Armorer Bench Notes & Real-World Staging Guidance:*
Fitment Matrix: Fits 9x19mm double-stack Glock-pattern pistols including Glock G17, G19, G19X, G26, G34, G45, G47, G49, and the Ruger® RXM®. CRITICAL WARNINGS: NOT compatible with single-stack/slimline models (G43, G43X, G48). NOT recommended for Pistol Caliber Carbines (PCCs), which require the shorter-tower MAG1137-BLK PMAG D-50 GL9 – PCC model. Due to the substantial mass of 50 loaded 9mm rounds, Magpul recommends installing a fresh OEM magazine catch on Gen 1–3 frames and explicitly requires an aftermarket metal magazine catch on Gen 4 and Gen 5 frames to prevent drum drop-outs under recoil. Installing a fresh factory-weight recoil spring assembly is also strongly advised to guarantee reliable slide return and feeding.
- Ensure the host firearm is completely clear, existing magazine removed, and chamber visually and physically verified empty.
- Inspect and upgrade the host pistol's magazine catch (fresh OEM catch for Gen 1–3; aftermarket metal catch for Gen 4–5) and verify recoil spring serviceability before staging.
- Rotate the ratcheting loading lever to relieve internal mainspring tension, insert 9x19mm cartridges nose-first into the feed tower, and repeat until 50 rounds are seated.
- Insert the loaded drum firmly into the grip frame on either an open or closed slide until the magazine catch audibly and positively engages.
- Tug downward on the drum body to verify mechanical lockup, rack the slide to chamber a round, and confirm proper bolt lock-back upon firing the final cartridge.
Key Features
- 50-Round Pistol-Specific Drum Architecture: Extended feed tower geometry seats cleanly in double-stack 9mm Glock-pattern handgun frames while keeping overall height compact.
- Ratcheting Loading Lever: Relieves spring tension during loading for rapid, thumb-saving 50-round capacity fills without separate loading tools.
- GEN M3® Polymer & Stainless Internals: Crush-resistant polymer body paired with stainless-steel internal components supports indefinite loaded storage without spring fatigue.
- Last-Round Bolt Hold-Open: High-visibility follower positively actuates the slide stop on the final round in compatible Glock-pattern pistols.
- Rear Capacity Window & Dot Matrix: Translucent anti-glare rear window with capacity roller provides instant round-count checks alongside a paint-pen marking grid.
- Simplified Maintenance & Dust Cover: Disassembles easily with a flat-bladed screwdriver and includes a semi-rigid dust cover to keep feed lips free of debris.
Product Specifications
- Brand: Magpul® Industries Corp.
- Model/Series: PMAG® D-50® GL9® – GLOCK®
- MPN / SKU: MAG1033-BLK / MAG1033BLK
- UPC: 840815132325
- Caliber: 9x19mm Parabellum / 9mm Luger
- Capacity: 50 Rounds
- Material: Impact-Resistant Polymer Body / Stainless-Steel Internals
- Finish / Color: Matte Black
- Weight (Unloaded): 17.3 oz (1.081 lb / 490.4 g)
- Platform Compatibility: Double-Stack 9mm Glock®-Pattern Pistols (G17, G19, G19X, G26, G34, G45, G47, G49) & Ruger® RXM®
- Country of Origin: United States of America (Made in USA)
