American Tactical Inc-ATI ATI Schmeisser S50 MLE Glock Magazine Adapter for Glock 9mm Luger 17/19 50/rd
$41.73
Upgrade your Glock 17 to 50 rounds or Glock 19 to 48 with this lightweight polymer adapter featuring side-facing witness windows for instant round count visibility. Quick-install reversible design lets you switch back to standard capacity instantly.
63 in stock
Constructed from impact-resistant polymer and featuring side-facing witness windows this kit remains lightweight and allows you constant visibility of your remaining rounds. It installs quickly and easily with the included disassembly tool and is reversible anytime you’d like to go back to your standard magazine! The overall capacity for Glock 17 magazines increases to 50 rounds while the overall capacity for Glock 19 magazines increases to 48 rounds!
| Weight | 0.560 lbs |
|---|---|
| Dimensions | 15.250 × 5.500 × 2.000 in |
| Manufacturer | American Tactical |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

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