Smith & Wesson CSX E-Series 3.1-inch
Optics-ready micro-compact 9mm with an aluminum frame, flat-black finish, and included 12-, 15-, and 17-round magazines
- Price
- $599
- Weight
- 1 lb 3.7 oz
- Calibers
- 9mm
- Rail
- none
- Best For
- concealed carryrange training
Featured in
Key Highlights
- •3.1-inch micro-compact frame with a 19.7-ounce unloaded weight
- •Modified RMS-C/507K optic cut from the factory
- •12-, 15-, and 17-round magazines plus a modular grip adapter included
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Overview
The Smith & Wesson CSX E-Series 3.1-inch is a micro-compact 9mm with an aluminum frame, a polymer grip, and a factory optic cut. The 19.7-ounce pistol uses a modified RMS-C/507K footprint and ships in a flat-black frame and Armornite-finished stainless slide and barrel configuration.
The short 3.1-inch barrel keeps the pistol 6.1 inches long and 1.12 inches wide. Smith & Wesson pairs that compact size with an enhanced E-Series trigger, interchangeable backstraps, and extensive grip texture. The modular grip adapter can extend the grip for a fuller hold when concealment is less important.
The package includes 12-, 15-, and 17-round magazines, so the same pistol can be set up for a smaller grip or a fuller firing grip. The modified RMS-C/507K cut also gives the CSX E-Series a clear path to a micro red dot. Its tradeoff is weight: at 19.7 ounces, the aluminum-frame CSX is heavier than many polymer micro-compacts, but it gives the shooter a denser, more substantial carry pistol.
Key Features
- 3.1-inch stainless steel barrel with a 1:10 twist and Armornite finish
- Modified RMS-C/507K optic-ready slide cut
- Aluminum alloy frame with flat-black finish
- Stainless steel slide with Armornite finish
- Enhanced E-Series trigger with a clean break and reset
- Interchangeable backstraps and modular grip adapter
- White-dot sights
- One 12-round, one 15-round, and one 17-round magazine included
Capability Profile
0-10 Scale Across 8 Axes
Pros
- +Factory optic-ready cut supports Shield RMSc and Holosun K-series micro dots
- +Three magazine sizes cover deep concealment and fuller-grip use
- +Aluminum frame and 19.7-ounce weight give the pistol a solid feel
- +Modular grip adapter changes the grip size without changing pistols
- +3.1-inch barrel and 6.1-inch overall length fit the micro-compact class
Cons
- −Heavier than many polymer-frame micro-compacts
- −The 1.12-inch width is not the thinnest in the carry class
- −The 3.1-inch barrel is not threaded for a suppressor
- −The exact cataloged configuration uses a thumb safety
- −The CSX has a smaller accessory ecosystem than Glock, SIG, or Shield models
Detailed Specifications
- caliber
- 9mm
- Barrel Length
- 3.1 inches
- Overall Length
- 6.1 inches
- weight
- 19.7 oz
- width
- 1.12 inches
- height
- 4.6 inches
- capacity
- 12, 15, and 17-round magazines included
- action
- Single action
- trigger
- Enhanced E-Series trigger with clean break and reset
- barrel
- Stainless steel, Armornite finish, 1:10 twist
- frame
- Aluminum alloy with flat-black finish; polymer grip
- opticCut
- Modified RMS-C/507K footprint
- sights
- White dot
- safety
- Ambidextrous thumb safety
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