SIG SAUER P320-M18 9mm Coyote 10-Round Pistol

Description

SIG SAUER P320-M18 9mm 10-Round Pistol

The SIG SAUER P320-M18 is the commercial carry-size pistol based on the compact M18 configuration selected for U.S. military service. This limited-capacity variant retains the coyote-colored slide and grip module, striker-fired P320 operating system, manual safety, optics-ready slide, SIGLITE sight arrangement, and M1913 accessory rail while supplying three 10-round steel magazines.

This listing is for SIG SAUER manufacturer part number 320CA-9-M18-MS-10, UPC 798681618040. It is chambered in 9mm Luger and uses a 3.9-inch carbon-steel barrel in the P320 Carry-size format.

Carry-Size M18 Configuration

The P320-M18 uses a carry-length slide and barrel with a full gripping surface, balancing sight radius, handling, and ammunition control in a practical service-pistol package. The coyote PVD-finished stainless-steel slide and coyote polymer grip module reflect the visual character of the military M18 while the serialized stainless-steel fire-control unit preserves the modular design associated with the P320 platform.

Optics-Ready Slide and Night Sights

The slide is optics ready and uses SIG SAUER’s PRO footprint. Its rear sight is incorporated into a removable night-sight plate, paired with a SIGLITE front sight. The factory arrangement provides a conventional sight picture until a compatible optic is installed. Because optic bodies, screws, and adapter requirements vary, confirm compatibility and follow the optic and pistol manufacturers’ torque instructions before installation.

Removing the rear plate changes the iron-sight arrangement. Owners should verify whether their selected optic or mounting solution provides an appropriate rear-sight option and should confirm zero after any sighting-system change.

Manual Safety and P320 Controls

An ambidextrous manual safety allows the user to mechanically block firing when engaged. It is designed to supplement—not replace—safe firearm handling. Always keep the pistol pointed in a safe direction, keep the finger outside the trigger guard until ready to fire, and use a properly fitted holster that protects the trigger. The striker-fired action and standard curved trigger provide the consistent operating format familiar to P320 users.

Accessory and Magazine Configuration

The carry-size polymer grip module includes an M1913 rail for compatible lights and accessories. Check accessory dimensions and fit before use so the device does not interfere with the trigger guard, controls, or holster. This model includes three 10-round steel magazines, making it suitable for jurisdictions or users that require the lower-capacity configuration.

Key Specifications

• Caliber: 9mm Luger
• Action: striker-fired
• Pistol size: Carry
• Capacity: 10+1
• Magazines included: three 10-round steel magazines
• Barrel length: 3.9 inches
• Barrel material: carbon steel
• Slide material: stainless steel
• Slide finish: coyote PVD
• Frame and fire-control-unit material: stainless steel
• Grip module: medium Carry polymer
• Grip color: coyote tan
• Sights: SIGLITE front sight with night-sight rear plate
• Optics ready: yes, SIG SAUER PRO footprint
• Manual safety: yes
• Accessory rail: M1913
• Overall length: 7.2 inches
• Overall width: 1.6 inches
• Height: 5.5 inches
• Weight: approximately 28.1 ounces

What’s Included

• SIG SAUER P320-M18 9mm pistol
• Three 10-round steel magazines

Ownership and Transfer

This product is a regulated firearm and must be transferred through a federally licensed dealer in accordance with federal, state, and local law. State-compliant labeling does not guarantee legality in every locality, so the buyer and receiving dealer should confirm current requirements before shipment. Read the P320 owner’s manual, use only compatible 9mm ammunition, and obtain qualified instruction before use.

The 320CA-9-M18-MS-10 is the P320-M18 configuration for buyers who want the coyote carry-size platform, optics-ready slide, manual safety, night sights, and a factory three-magazine 10-round package.