SIG P320 10MM X-SERIES 5 OPTIC READY 15RD COY
- Firearm Make Fit:
- Sig Sauer
- Hand:
- Ambidextrous
- Finish-Color:
- Coyote
- Capacity-Rounds:
- 15
- Caliber-Gauge:
- 10mm Auto
The SIG P320 10mm X-Series 5 Optic Ready is a full-sized, modern striker-fired pistol built for shooters who want real stopping power and flat-out capability. The 10mm cartridge delivers significantly more velocity and energy than 9mm or .45 ACP, making this gun a legitimate choice for hunting, backcountry defense, and serious sport shooting. The optic-ready slide gives you the flexibility to mount a red dot or other reflex sight, while the factory X-RAY3 day/night sights keep you effective in any light. This is a modular design—swap grip modules to fit your hand and shooting style—so you're getting a platform that adapts to you.
The X-Series flat trigger breaks clean at 90 degrees, giving you a predictable, repeatable press without creep. The 5-inch bull barrel is accurate out of the box and contributes to the 34.9-ounce feel—substantial enough to tame recoil but still manageable for carry or extended range sessions. The Coyote Brown finish on the stainless steel slide pairs tactical aesthetics with real corrosion resistance. Two 15-round magazines ship with the gun, so you get solid capacity out of the factory.
Whether you're upgrading from a 9mm to experience the terminal performance of 10mm, setting up a competition or hunting rig, or building a truck gun that can handle predator duty, the P320 10mm X-Series earns its place on the bench and in the field. The modular P320 platform is one of the most customizable and reliable striker-fired systems made, and 10mm chambers it in a full-size package that actually runs.
Key Features
- 10mm Auto caliber for higher velocity and energy over standard pistol rounds
- Optic-ready slide with factory-cut rail for red dot or reflex sight installation
- X-RAY3 day/night sights for low-light and daylight accuracy
- Flat X-Series trigger with clean 90-degree break and minimal creep
- Modular grip module design—swap modules to customize fit and ergonomics
- 5-inch bull barrel for improved accuracy and recoil management
- Coyote Brown PVD finish on stainless steel slide
- Stainless steel frame for durability and corrosion resistance
- Two 15-round magazines included
Specifications
| Caliber | 10mm Auto |
| Barrel Length | 5 in |
| Overall Length | 8.5 in |
| Overall Height | 6.5 in |
| Overall Width | 1.3 in |
| Sight Radius | 6.8 in |
| Weight (with magazine) | 34.9 oz |
| Magazine Capacity | 15 rounds |
| Slide Material | Stainless Steel |
| Slide Finish | Coyote Brown |
| Frame Material | Stainless Steel |
| Grip Module | Polymer X-Series |
| Trigger | Striker-fired, X-Series flat trigger |
| Sights | X-RAY3 day/night |
Frequently Asked Questions
Can I mount a red dot sight on the P320 10mm X-Series?
Yes. The slide is factory optic-ready, meaning it has the mounting cuts to accept a reflex sight or red dot without needing additional milling or adapter plates.
What's the difference between the X-Series trigger and the standard P320 trigger?
The X-Series trigger is flat rather than curved and features a 90-degree break angle with a shorter reset. It delivers a crisper, more predictable trigger press favored by competitive shooters and users who demand precision.
Is the P320 X-Series modular? Can I change the grip?
Yes. The P320 is built on a modular platform, and the X-Series grip module is interchangeable. You can swap modules of different sizes and materials to customize the fit to your hand and shooting style.
How much do the included magazines hold, and how many come with the gun?
Two 15-round steel magazines are included in the box.
Firearm Shipments:
To buy rifles or shotguns, you must be 18 years old, and for handguns, actions, or receivers, the minimum age is 21. By placing an order for this firearm, you confirm that you are the legitimate transferee/buyer, meet the legal age requirements, and comply with all Federal, State, and local laws and regulations necessary to purchase this firearm.
We only ship firearms to valid Federal Firearms License (FFL) holders. At checkout we provide a FFL locator for your convenience.
We will need a copy of the FFL’s license to facilitate the process, kindly request your dealer to email us a copy of their FFL, as we cannot dispatch the firearm until we receive this document. It is imperative for the buyer to choose their FFL dealer, ensure they are willing to facilitate the transfer, and have them email their FFL copy to BOSQUE Outdoors. To avoid any confusion, the customer's name or order number must be mentioned in the email containing the FFL.
Email: [email protected]
- Prior to placing an order, it is the buyer's responsibility to understand and adhere to their state's firearm regulations.
- The buyer should verify with their receiving dealer that the chosen firearm is legally permissible in their state.
- The buyer is accountable for any transfer fees or background check charges imposed by the receiving dealer. If the designated dealer declines to accept the firearm delivery, the buyer assumes responsibility for shipping costs to retrieve the firearm and resend it to an accommodating dealer.
- Handguns will be shipped using air transportation, while long guns can be shipped using ground methods. If your order includes a mix of firearm and non-firearm items, BOSQUE Outdoors will send the firearm(s) to your selected FFL dealer and the remaining non-firearm items to your billing address.
- Firearms cannot be returned to BOSQUE Outdoors; please contact the manufacturer for warranty claims.
- Firearms refused by the FFL Dealer or which cannot be transferred due to a failed background check are subject to a $75 restocking fee plus 10% of the purchase price.

