Sig Sauer P320 M18 9MM 3.9in Barrel | 1-17 & 2-21 Mags

The Sig Sauer P320 M18 is presented here as a compact, duty-derived semi-automatic pistol with a 3.9 inch barrel and night sight. This configuration includes one 17-round magazine and two 21-round magazines, finished in black. A compact red-dot optic such as the Holosun 507K is a suitable pairing under $1000 for quicker target acquisition without compromising the pistol’s concealability.

Recommended applications for this pistol include everyday carry (EDC) and range training or competition practice.

Product Specifications

• The manufacturer is listed as Sig Sauer.
• The model is listed as P320 M18.
• The caliber is listed as 9MM.
• The barrel measures 3.9 inch for compact handling.
• The finish is described as Black.
• The package includes 1 – 17 Round and 2 – 21 Round magazines.
• The product includes a night sight as indicated in the listing.
• The action type is listed in category as Semi-Automatic.
• The category is Semi Auto Handguns.
• The UPC is 798681726509.

This P320 M18 configuration provides a compact footprint with higher-capacity magazine options, offering a balance between concealability and extended on-target capacity. The black finish and factory night sight make it practical for low-light sighting, while the 3.9 inch barrel keeps overall length moderate for daily carry or duty use. If you prioritize a low-profile red-dot, the Holosun 507K or similar compact reflex sight pairs well and keeps total system cost well under $1000.

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