Sig Sauer M18 9mm 3.9in Coyote | 1×17 & 2x21rd | M18-9-CSS-MS

The SIG Sauer M18 CSS is the commercial MHS-derived compact 9mm sidearm in a Coyote PVD finish. It pairs an optic-ready slide with SIGLITE front and removable night-sight rear plate and ships with one 17‑round and two 21‑round magazines. For a matched sighting solution, the SIG ROMEO-M17 red dot is directly compatible and remains priced well under $1,000.

Product Specifications

• The caliber is 9mm Luger.
• The barrel measures 3.9 inches.
• The pistol is optic-ready and uses the ROMEO-M17 / DeltaPoint Pro footprint.
• The firearm includes one 17-round and two 21-round steel magazines.
• The sights are SIGLITE front with a removable night-sight rear plate.
• The slide finish is Coyote PVD.
• The slide material is listed as stainless steel.
• The barrel material is listed as carbon steel.
• The action type is semi-automatic (striker-fired).
• The trigger is a curved striker trigger.
• The pistol includes a manual safety and ambidextrous controls.
• The overall length is 7.25 inches.
• The unloaded weight is 28.1 oz.
• The accessory rail is a M1913 Picatinny rail.
• The UPC is 798681715190.

The M18 CSS brings a service-derived footprint to civilian shooters who want a compact, duty-capable platform with modern optics compatibility. Its optic-ready slide and included magazines make it a practical carry and range pistol for users who value modularity and proven ergonomics.

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