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Springfield Armory part number XDM50113 is the factory original extended magazine for the XD-M Compact chambered in .40 S&W. This is not an aftermarket clone trying to pass as OEM — it is made to the exact same tolerances and materials as the magazine that shipped with your pistol, which matters more than people realize when it comes to reliable feeding.
The magazine body is stainless steel, giving it solid durability and corrosion resistance. Capacity is 16 rounds of .40 S&W, which is a meaningful step up from the flush-fitting 11-round compact magazine. It includes a polymer floor plate and feeds through a steel internal spring and injection-molded follower to keep cartridges properly aligned round after round.
The key thing that sets the XDM Compact extended magazine system apart from a typical flush or standard extended mag is the included X-Tension sleeve. The XD-M Compact's grip is sized around the shorter 11-round mag, so when you drop in the 16-rounder, there's a gap between the frame and the base of the magazine. The sleeve slides over the bottom of the extended mag and fills that gap, giving you a solid, one-piece grip feel rather than an awkward step-down. This specific version, XDM50113, includes the sleeve sized for backstrap #3 — the large size. If your XD-M Compact is set up with the medium or small backstrap, look for the XDM50112 or XDM50111 instead, as the sleeve sizing does correspond to which backstrap you have installed. The backstrap itself is not included with this magazine.
This mag works well as a primary carry option, a dedicated range mag, or simply a reliable spare to have on hand. Whether you're stocking up for range days or just want a backup that will seat and feed exactly like it should, this is the correct factory option for .40 S&W XD-M Compact owners.
This magazine ships with the X-Tension sleeve sized for backstrap #3, which is the large backstrap. Springfield offers the same 16-round magazine with sleeves in three sizes — #1 (small), #2 (medium), and #3 (large) — so it is important to match the sleeve size to whichever backstrap is installed on your XD-M Compact. The backstrap itself is not included with this magazine.
Yes, the magazine will seat and function in the XD-M Compact without the sleeve attached. The sleeve simply fills the gap between the extended magazine base and the pistol's grip frame, creating a smooth, uninterrupted grip surface. Some owners prefer to run the mag without the sleeve for a cleaner reload, and the exposed stainless baseplate still provides a slight finger extension for grip support.
Yes, the 16-round .40 S&W magazine is compatible with both the XD-M Compact and the full-size XD-M chambered in .40 S&W. However, the compact 11-round magazine does not fit in the full-size model. The X-Tension sleeve is really only relevant on the compact platform and would not be needed in the full-size grip.
Yes, this is an OEM Springfield Armory magazine manufactured to the original factory specifications and tolerances. It uses the same materials and construction as the magazine that came with your pistol. For reliable feeding and a proper fit, sticking with the factory magazine is the straightforward choice for any XD-M Compact owner.
Standard XD-M magazines are generally cross-compatible with XD-M Elite models in the same caliber, but you should verify fitment for your specific Elite variant before relying on a magazine in a defensive role. Springfield's magazine lineup between the XD-M and XD-M Elite series shares a lot of overlap, but when in doubt, confirm with Springfield Armory directly for your exact model.
The X-Tension sleeve is a polymer piece that slides over the lower portion of the extended magazine, bridging the gap between the magazine base and the bottom of the XD-M Compact's grip frame. Without it, there is a noticeable step-down at the bottom of the grip when using the 16-round magazine in the compact pistol. With the sleeve installed and matched to your backstrap size, the grip feels like one continuous surface, which improves both comfort and control during shooting.
| UPC | 706397888800 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | XDM50113 |
| Brand Fit | Springfield Armory |
| Caliber/Gauge | .40 S&W |
| Capacity | 16 |
| Model | |
| Model Fit | XD-M Compact |
| Product Type | High Capacity |
| Shipping Weight | 0.235 |
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