Description
The Shadow Systems MR920 Elite 9mm 4.5 Black is a compact, optics ready 9mm with a 4.5 inch threaded and fluted barrel, a 15 round capacity and a flat-faced trigger. Built on a Glock 19 compatible footprint, it works with common holsters, magazines and accessories.

Shadow Systems MR920 Elite 9mm 4.5 Black Overview
Shadow Systems built the MR920 Elite to deliver custom-shop features straight from the box. The slide is machined from 17-4 stainless steel with an optic cut, and the barrel is 416R stainless steel, fluted for weight reduction and threaded for a suppressor or compensator. Sights are a tritium front night sight with a serrated rear. 5 pounds with a short, crisp reset.
The frame has a double undercut trigger guard, an extended beavertail to prevent slide bite, a magwell extension for faster reloads and three interchangeable backstraps for high, neutral or low natural point of aim. 625 inches. Because it shares the Glock 19 footprint, it fits Glock 19 holsters, magazines and many accessories.
Optics Ready and Suppressor Ready
The optics cut lets you mount a red dot for faster target acquisition, and the threaded barrel accepts a suppressor or compensator. The tritium front sight remains useful as a backup or for low light shooting.
Glock 19 Compatibility
Sharing the Glock 19 footprint means the MR920 works with a huge range of holsters, magazines and accessories, so you are not locked into proprietary gear. Spare magazines are affordable and available everywhere.
Carry and Training
A 4.5 inch barrel and 15 round capacity make the MR920 a strong choice for carry and home defense. Train with your carry ammunition, practice your draw with a quality holster and confirm your red dot zero regularly.
Practice and Training
Regular practice builds confidence and safe handling. Start at close range, focus on sight alignment and a smooth trigger press, and work back as your groups tighten. Dry fire with snap caps at home to improve your trigger control between range trips.
Choosing Ammunition
Try several brands and bullet weights to see what feeds reliably and groups best in your handgun. Use quality full metal jacket loads for practice and proven hollow points for defense, and confirm reliable function with your defensive load before carrying it.
Care and Maintenance
Clean the barrel, slide or cylinder and frame after shooting, apply a light coat of quality lubricant to moving parts, and store the handgun unloaded in a locked case or safe away from children.
Safe Storage
Store handguns unloaded in a locked safe, lockbox or with a cable lock, and keep ammunition separate when children are in the home. Quick access safes keep a defensive handgun secure but available. Teach everyone in the household basic firearm safety rules.
Recommended Accessories
A quality holster, spare magazines, eye and ear protection and a cleaning kit round out any handgun purchase. For defensive use, add a weapon light and practice drawing safely from your holster with an unloaded gun before carrying.
Ordering From MAG5
Choose your local FFL dealer at checkout and we ship directly to them. Once the firearm arrives, your dealer runs the background check and completes the transfer paperwork. Most dealers charge a modest transfer fee, so ask about it before you order.
Safe Storage
Store handguns unloaded in a locked safe, lockbox or with a cable lock, and keep ammunition separate when children are in the home. Quick access safes let you keep a defensive handgun secure but available. Teach everyone in the household basic firearm safety rules.
Ordering From MAG5
Choose your local FFL dealer at checkout and we ship directly to them. Once the firearm arrives, your dealer will run the background check and complete the transfer paperwork. Most dealers charge a modest transfer fee, so ask about it before you order.
State Laws
Firearm, magazine and transfer laws vary by state. Check your local laws and confirm your receiving dealer can complete the transfer.
Specifications
- Manufacturer: Shadow Systems
- Model: MR920 Elite
- Item Number: SS-1010
- UPC: 810013431605
- Caliber: 9mm Luger
- Action: Striker fired
- Barrel: 4.5 in 416R stainless, fluted and threaded
- Slide: 17-4 stainless, optics ready
- Sights: Tritium front night sight, serrated rear
- Trigger: Flat-faced aluminum, 4 to 4.5 lbs
- Capacity: 15+1, two magazines included
- Overall Length: 7.625 in
- Finish: Black
- Footprint: Glock 19 compatible
Before You Buy
Federal law requires handguns to ship to a licensed FFL dealer, and you must be 21 or older to purchase a handgun from a dealer. You will complete a background check at your dealer. Check your local laws before ordering.
Who It Is For
The Shadow Systems MR920 Elite 9mm 4.5 Black is a great fit for shooters who want an optics ready, suppressor ready 9mm with custom features and Glock 19 compatibility.
Buy the this model at MAG5 Firearms
MAG5 Firearms is a family-owned FFL in Collegeville, Pennsylvania. Order the this model online and ship it to your local FFL dealer, or browse our full selection of firearms for more pistols. For factory details, visit Shadow Systems.







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