Shield Arms +5/+4 Magazine Extension for Glock 17/22/34/35/19X/45 Black G17-ME-5-BLK UPC 853465008117
Product Description
The Shield Arms +5/+4 Magazine Extension (G17-ME-5-BLK) is a premium anodized aluminum base pad engineered to expand the round capacity and reload efficiency of full-size double-stack Glock factory magazines. Precision-machined to match the exact floorplate lockup footprint of standard OEM Glock magazines, this extension adds +5 rounds of 9mm capacity (or +4 rounds of .40 S&W), transforming factory 17-round magazines into high-capacity 22-round capability.
Manufactured in the USA from aircraft-grade 6061-T6 billet aluminum and finished in a slick Type III hardcoat anodized black, the G17-ME-5-BLK is built to withstand hard tactical drops onto concrete, high-volume match environments, and rigorous duty exposure. It features an easy-access index groove design along the side walls for rapid tactile extraction during stripping drills and dynamic reloads.
The kit comes complete with an extended, high-tensile 11-coil power spring engineered specifically to maintain uniform upward feeding pressure, ensuring crisp lock-back on empty and 100% feeding reliability across fast double-taps and intense strings of fire.
Armorer Bench Notes & Real-World Staging Guidance:
Fitment Matrix: Fits factory OEM Glock double-stack full-size magazines for Glock 17, 22, 34, 35, 19X, and 45 (Gen 3, Gen 4, and Gen 5 variants). Adds +5 rounds in 9mm or +4 rounds in .40 S&W.
- Perform a complete firearm safety check: drop the magazine, lock the slide rearward, and visually inspect the chamber to verify zero live rounds are present.
- Depress the side insert tabs or floorplate retaining pin on your factory Glock magazine to remove the stock floorplate, insert plate, and factory spring.
- Clean all factory grease, carbon, and debris from the interior of the polymer magazine body.
- Insert the provided Shield Arms extended 11-coil spring into the magazine body, ensuring proper top-follower orientation.
- Slide the Shield Arms aluminum extension onto the magazine body rails until the set screw or retaining pin locks firmly into place.
- Load magazine to full capacity (+5 rounds over factory) and manually cycle dummy rounds to confirm feed geometry and slide lock-back function.
Key Features
- Increased Capacity (+5 9mm / +4 .40 S&W): Expands standard full-size Glock magazines to 22 rounds for 9mm platforms without changing grip mechanics.
- Machined 6061-T6 Billet Aluminum: Solid aluminum body withstands severe impact and tactical reloads on hard ground.
- Type III Hardcoat Anodized Black: Deep matte black coating guards against corrosion, sweat, and surface abrasion.
- Includes Extended High-Power Spring: Comes supplied with an extended 11-coil spring to guarantee correct feeding tension and slide lock.
- Side Index Grooves: Ergonomic side cuts allow rapid manual traction if stripping stuck magazines during clearing drills.
- Made in the USA: Proudly designed, machined, and manufactured in the United States backed by Shield Arms’ Lifetime Warranty.
Product Specifications
- Brand: Shield Arms
- Model/Series: +5/+4 Magazine Extension
- MPN / SKU: G17-ME-5-BLK
- UPC: 853465008117
- Caliber: 9mm NATO / .40 S&W
- Capacity Added: +5 Rounds (9mm) / +4 Rounds (.40 S&W)
- Platform Compatibility: Glock 17, 22, 34, 35, 19X, 45 (Factory OEM Magazines)
- Material: 6061-T6 Billet Aluminum
- Finish / Color: Hardcoat Anodized Black
- Weight: 1.6 oz (Extension only)
- Country of Origin: USA
