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This Mec-Gar extended magazine delivers 20 rounds of 9mm ammunition in your Glock 17, doubling the standard factory capacity without any modifications to your pistol. The magazine is constructed from heat-treated carbon steel with a proprietary anti-friction coating that makes loading smoother while reducing the risk of malfunctions and corrosion. That coating also means easier break-in compared to some competing aftermarket magazines.
Internally, the magazine features a high-tensile music wire spring paired with a high-visibility green polymer follower that ensures consistent feeding performance from first round to last. The precision-machined feed lips and magazine catch channel provide a snug fit without wobble, and the black polymer floorplate gives you a durable base. Best of all, you don't need to replace your existing Glock mag catch to use these, which saves you time and money during installation.
Mec-Gar has been manufacturing magazines since 1965 and supplies OEM magazines to major firearm manufacturers and military customers around the world. Whether you're stocking up for range sessions, competition shooting, or just want extra capacity on hand, these steel magazines have earned a solid reputation for durability and reliability. The extended profile means the magazine extends below the grip of your Glock 17, but that's the trade-off for holding 20 rounds in a platform designed around 17.
Yes, Glock 17 magazines fit and function in both the Glock 19 and Glock 26 models, though the extended magazine will protrude below the grip frame. For the Glock 19, you can purchase an outer sleeve if you want to minimize the magazine extension.
No, this is one of the key advantages of the Mec-Gar design. The magazine works with your factory polymer magazine catch, so no modifications are needed. Some competing extended magazines require a metal catch replacement.
No, the Mec-Gar 20-round extended magazine uses its own specially designed floorplate and is not compatible with standard Glock replacement floorplates. The floorplate is included with the magazine.
The anti-friction coating reduces friction during loading, making the magazine easier to load by hand compared to uncoated steel. It also provides superior protection against rust and corrosion, which extends the lifespan of the magazine and keeps it functioning smoothly through years of use.
Mec-Gar magazines are manufactured from steel instead of Glock's polymer construction with steel liners, making them more durable and corrosion-resistant. Mec-Gar has supplied magazines to military and law enforcement agencies worldwide since 1965, and this extended capacity option gives you significantly more rounds per magazine than factory Glock options.
| UPC | 765595900066 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | MGG172003A |
| Caliber/Gauge | 9mm |
| Capacity | 20 |
| Color | Black |
| Length | 5.8500 |
| Model | |
| Product Type | Magazine |
| State Restriction (CA) | NO DIRECT SHIP TO CALIFORNIA |
| State Restriction (IL) | NO SALE TO ILLINOIS PICA |
| State Restriction (RI) | NO DIRECT SHIP TO RHODE ISLAND |
| State Restriction (WA) | NO DIRECT SHIP TO WASHINGTON |
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