Springfield XD-M Compact Extended Magazine with Sleeve – .40 S&W, 16 Rounds, For Backstrap #3 (XDM50113)
The Springfield XD-M Compact Extended Magazine with Sleeve (for Backstrap #3) .40 S&W 16/rd (XDM50113, UPC 706397888800) is a factory-original magazine designed to transform your XD-M Compact .40 S&W into a high-capacity, full-grip performer.
Featuring a durable stainless steel body, 16-round capacity, and a specially matched polymer sleeve for Backstrap #3, this extended magazine gives you the firepower, control, and ergonomics of a full-size XD-M while still allowing you to carry and shoot a compact slide and frame.
If you run an XD-M Compact .40 and want maximum capacity plus a full, comfortable grip, this OEM Springfield magazine is built for you.
Key Features – Springfield XDM50113 .40 S&W Extended Magazine
Caliber: .40 S&W
Capacity: 16 rounds
Body Material: Stainless steel magazine tube (factory Springfield construction)
Base / Sleeve: Extended magazine with polymer grip sleeve designed for Backstrap #3
Platform Fit: Springfield XD-M Compact .40 S&W
Backstrap Fit: Sized to match interchangeable backstrap #3 (largest backstrap) on XD-M grip systems
Manufacturer Part #: XDM50113
UPC: 706397888800
Purpose-Built for XD-M Compact .40 S&W with Backstrap #3
The XDM50113 is not a generic mag—it’s engineered specifically for the XD-M Compact .40 S&W and Backstrap #3:
The stainless steel mag body locks into the XD-M Compact grip, while the included sleeve matches the contour of the #3 backstrap, Springfield’s largest grip insert.
The sleeve fills the gap between the compact frame and extended magazine, creating a seamless, full-size grip profile.
This gives you a full three-finger grip, perfect for shooters with larger hands or anyone who wants maximum control when shooting .40 S&W.
If you already run Backstrap #3 on your XD-M, this is the correct extended magazine and sleeve combo for a perfect fit and feel.
16-Round Capacity – Full-Size Firepower in a Compact Package
With 16 rounds of .40 S&W, this extended magazine offers serious capacity:
Comparable to many full-size duty pistols, but in your compact XD-M platform
Fewer reloads during range sessions, classes, and defensive drills
Extra confidence for home defense and personal protection
Many XD-M Compact owners carry:
A shorter flush-fit mag for deep concealment, and
A 16-round XDM50113 as their primary reload, adding both capacity and a full-size grip with each mag change.
Stainless Steel Construction – Strong, Reliable, and Durable
The magazine body is built from stainless steel, providing:
High structural strength to maintain feed-lip geometry over thousands of rounds
Corrosion resistance against sweat, humidity, and adverse weather conditions
Smooth internal walls that work with the follower and spring for consistent, reliable feeding
For a defensive pistol system you rely on, the long-term durability of a stainless mag is a major advantage.
Backstrap #3 Sleeve – Full Grip & Perfect Ergonomics
This mag includes a polymer sleeve that’s specifically designed to match Backstrap #3 on the XD-M platform:
Aligns perfectly with the largest backstrap, so the grip feels continuous—no steps, gaps, or sharp edges.
Gives you a full, hand-filling grip, making it easier to manage the recoil impulse of .40 S&W.
Provides a more stable shooting platform, improving accuracy and faster follow-up shots.
If you use the smaller backstraps on your XD-M, Springfield offers magazines with sleeves sized to those as well—but for Backstrap #3 users, XDM50113 is the right match.
OEM Springfield Quality – Trusted for Defense & Training
As a Springfield Armory factory magazine, the XDM50113 delivers:
Proper mag catch cutouts and dimensions for secure lock-up and drop-free operation.
A tuned follower and spring engineered for .40 S&W in the XD-M system.
The reliability you need for EDC, home defense, duty, and high-round-count training.
For any serious defensive handgun, OEM magazines are the most dependable choice, and this model is built to Springfield’s exacting standards.
Ideal Use Cases – Where the XDM50113 Shines
This extended 16-round XD-M Compact magazine is an excellent choice for:
Home Defense: High capacity and full grip for superior control when every shot counts.
Concealed Carry Reload: Use a flush-fit mag in the gun and carry the XDM50113 as a full-grip, high-capacity spare.
Range & Training: Extended grip and extra rounds reduce fatigue and reload interruptions in long sessions.
Competition / Practical Shooting: More rounds on tap and a better grip make it easier to run stages efficiently.
Any time you want your XD-M Compact .40 to perform like a full-size fighting pistol, this mag is the upgrade that makes it happen.
Care & Maintenance Tips
To keep your Springfield XDM50113 16-round magazine running at peak performance:
Inspect regularly for dents, bent feed lips, or damage to the sleeve.
Periodically disassemble and clean the tube, follower, and spring—especially after exposure to sand, mud, or heavy range use.
Keep lubrication inside the mag to a minimum; excess oil attracts dirt and can cause feeding issues.
Rotate magazines used for carry and training to even out wear and quickly identify any problematic mags.
Proper care ensures your OEM mag remains reliable and ready whenever you need it.
Technical Summary – Springfield XD-M Compact Extended Magazine (XDM50113)
Manufacturer: Springfield Armory
Model: XD-M Compact Extended Magazine with Sleeve (Backstrap #3)
Part Number: XDM50113
UPC: 706397888800
Caliber: .40 S&W
Capacity: 16 rounds
Body Material: Stainless steel
Sleeve: Polymer grip sleeve sized for Backstrap #3
Platform: Springfield XD-M Compact .40 S&W
Use: Concealed carry reload, home defense, range training, high-capacity backup
If you want to maximize capacity, grip, and control on your XD-M Compact .40 S&W—especially when running Backstrap #3—the Springfield XD-M Compact Extended Magazine with Sleeve (for Backstrap #3) .40 S&W 16/rd XDM50113 is the factory-original magazine that delivers full-size performance and Springfield reliability in one smart upgrade.
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