The Sig Sauer P320 M18 9mm 3.9in Black is a 9mm semi-automatic handguns from Sig Sauer. It is available from 1 vendor at $499.99 to $849.99.
Name: Sig Sauer P320 M18 9mm 3.9in Black
Brand: Sig Sauer
Category: Semi-Automatic Handguns
Caliber: 9mm
Barrel Length: 3.9"
UPC: 798681620319
SKU: UCE3nOgU3
Recently Added
Concealed CarryBest 9mm HandgunsBest Semi-Auto Shotguns9mm RevolverOptic-ReadyWeatherby Mark VMatch Pistols
AI-generated insights derived from customer reviews and discussions on popular gun-enthusiast forums.
What caliber is the P320 M18?
The P320 M18 is chambered in 9mm.
Who makes the P320 M18?
The P320 M18 is made by Sig Sauer.
What type of firearm is the P320 M18?
It is a striker-fired semi-automatic pistol with a black finish, built on the P320 platform in an M18 compact-carry configuration.
What is the barrel length of the P320 M18?
The barrel is 3.9 inches long.
How many rounds does the P320 M18 hold?
It has a 21-round capacity.
Where can I buy the P320 M18?
Compare current vendor offers on this page.
The Sig Sauer P320 M18 is a striker-fired semi-automatic pistol chambered in 9mm with a 3.9-inch barrel. It has a 21-round capacity. The law enforcement version is finished in black.
| Caliber | 9mm |
| Model | P320 M18 |
| Barrel length | 3.9" |
| Action | Semi Auto |
| Color | Black |
The P320 M18 is chambered in 9mm.
The P320 M18 is made by Sig Sauer.
It is a striker-fired semi-automatic pistol with a black finish, built on the P320 platform in an M18 compact-carry configuration.
The barrel is 3.9 inches long.
It has a 21-round capacity.
Compare current vendor offers on this page.
AI-generated insights derived from customer reviews and discussions on popular gun-enthusiast forums.
The P320 M18 occupies the compact slot in Sig's military-contract lineup, and owners often describe it as the sweet spot between the full-size M17 and a true subcompact. The 3.9-inch barrel is short enough for concealed carry while the grip length still accommodates a full hand.
Buyers coming from law enforcement or military backgrounds tend to appreciate the familiar manual of arms and the interchangeable FCU with other P320 variants. The 21-round capacity is a consistent talking point, especially for LE trade-in buyers who want standard-capacity availability.
The same drop-safety conversation that follows the M17 applies here. Current P320 M18 production units are generally accepted as corrected, but buyers with older serials tend to research the revision history. The compact frame draws mixed opinions on grip texture compared to the M17.
Price Range: $499.99 - $849.99
| Vendor | Price | Condition | Link |
|---|---|---|---|
| Guns Com | $499.99 | Used | Buy Now |
| Guns Com | $849.99 | New | Buy Now |
.40 S&W
9mm
9mm
.45 ACP
