The Springfield Armory XD-M Compact Extended Magazine with Sleeve (for Backstrap #2) – .40 S&W, 16-Round (XDM50112, UPC 706397888817) is a factory-original high-capacity magazine designed to give your XD-M Compact .40 S&W pistol maximum firepower and a full-size grip feel. Featuring a durable stainless steel body, 16-round capacity, and an X-Tension grip sleeve specifically contoured for Backstrap #2 (medium), this magazine is the ideal upgrade or spare for shooters who want added control, comfort, and reliability from their XD-M Compact.
Factory Springfield XD-M Compact Magazine – OEM Reliability You Can Trust
This is a genuine Springfield Armory magazine, built to the same exacting standards as the mags that ship with your XD-M pistol from the factory.
Official OEM Springfield part – not a generic aftermarket mag
Engineered specifically for XD-M and XD-M Compact .40 S&W models
Provides reliable feeding, positive slide lock, and proper fit in the magwell
When it comes to defensive handguns, OEM magazines are the benchmark for long-term reliability and problem-free performance.
16-Round .40 S&W Capacity – Maximum Onboard Firepower
The XDM50112 extended magazine boosts your XD-M Compact’s capacity to 16 rounds of .40 Smith & Wesson.
Ideal for home defense, range training, and competition (where legal)
Fewer reloads mean more training time spent shooting rather than reloading
Excellent choice as a primary mag, backup mag, or dedicated range magazine
If you’re serious about performance, having multiple 16-round magazines on hand is a must.
Stainless Steel Body & Rugged Internal Components
Built for hard use, this XD-M magazine features a tough, corrosion-resistant construction:
Stainless steel magazine body stands up to sweat, moisture, and daily carry
High-tensile steel spring ensures consistent, positive feed under recoil
Durable polymer follower promotes smooth feeding and reliable slide lock
Numbered witness holes along the body let you quickly check remaining capacity at a glance
From training days to long-term storage, this mag is designed to last.
X-Tension Sleeve for Backstrap #2 – Perfect Fit for Medium Grip Inserts
What sets this particular magazine apart is its X-Tension grip sleeve specifically shaped for Backstrap #2 (medium) on XD-M Compact pistols.
Sleeve fills the gap between the extended magazine body and the shorter compact grip frame
Creates a full-size grip profile for better recoil control and comfort
Maintains a smooth, continuous grip surface that looks and feels factory original
Springfield XD-M backstraps are numbered by size:
#1 – Small
#2 – Medium
#3 – Large
This magazine is specifically labeled for Backstrap #2, ensuring that the sleeve lines up cleanly with your medium-size grip insert and avoids awkward steps or gaps.
Enhanced Control & Ergonomics for .40 S&W
The combination of a full-length grip and 16-round capacity dramatically improves how the XD-M Compact handles:
Extra room for your pinky and support hand for a more secure grip
Better leverage over the pistol, especially with the snappier recoil of .40 S&W
Can help promote faster follow-up shots and tighter groups, particularly in rapid-fire drills
For shooters with medium or larger hands, the extended grip and tailored X-Tension sleeve can make the pistol feel more natural and easier to control.
Ideal for XD-M 3.8 Compact & XD-M Compact .40 S&W
The Springfield XD-M Compact Extended Magazine XDM50112 is designed to work with:
It functions as an excellent factory replacement or spare magazine, ensuring that you maintain Springfield’s original design intent for reliability, balance, and ergonomics.
High-Capacity Magazine – Check Local Laws
With 16 rounds of .40 S&W, this is considered a high-capacity magazine in many jurisdictions.
Before purchasing or carrying, be sure to:
Staying compliant with your local laws is an essential part of responsible firearms ownership.
Key Features & Specifications – Springfield XD-M Compact Extended Magazine XDM50112
Brand: Springfield Armory
Product Type: Extended pistol magazine with grip sleeve
Model: XD-M Compact Extended Magazine with Sleeve (Backstrap #2)
Manufacturer Part Number (MPN): XDM50112
UPC: 706397888817
Caliber: .40 S&W
Capacity: 16 rounds
Construction:
Stainless steel magazine body
Steel spring and polymer follower
Black X-Tension grip sleeve sized for Backstrap #2 (medium)
Finish/Color: Stainless body with black base/sleeve
Compatibility:
If you want to maximize capacity and grip control on your XD-M Compact .40 S&W, the Springfield Armory XD-M Compact Extended Magazine with Sleeve (for Backstrap #2) – 16 Round (XDM50112, UPC 706397888817) is the factory-correct solution, delivering OEM reliability, full-size ergonomics, and serious .40-caliber firepower in one smart upgrade.
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