Kentucky Gunshop is a Rockford, IL-based retailer where we inspect every firearm before it ships. Having added the P320-XFIVE DH3 to our catalog in January 2026, we’ve seen it become a consistent performer with a 4.5/5 satisfaction rating from our buyers.
Reviewed by Jake Thornton, Lead Armorer at Kentucky Gunshop. 12+ years, 200+ switches tested.
Last updated: April 2026
Let’s talk about the P320-XFIVE DH3. This isn’t just another polymer-frame pistol; it’s a purpose-built competition and duty-ready platform that I’ve had my hands on more times than I can count. As the lead armorer here, I get to run every model we sell through its paces, and this one stands out for its out-of-the-box readiness. The fit and finish on the units we’ve shipped have been consistently clean—no rough machining or finish flaws that would make me hesitate to put my name on the inspection tag.
Key Features
The DH3 variant takes the proven P320-XFIVE foundation and adds the Dynamic Performance Trigger. The difference is tangible. The break is crisp and the reset is short and positive, giving you a distinct tactile and auditory cue. It’s a significant upgrade for anyone focused on split times. The integrated magwell is another huge plus, making reloads under pressure feel almost effortless. The slide is optics-ready from the factory with the SIG Sauer Romeo2 footprint, and it comes with suppressor-height sights that give you a solid co-witnessing option. In our function checks and range testing, we’ve found the DH3 feeds reliably with both brass and steel case ammunition, which speaks to its solid out-of-the-box reliability.
Specifications
| Model | P320-XFIVE DH3 |
| Caliber | 9mm Luger |
| Action | Striker-Fired |
| Barrel Length | 5.0 in |
| Overall Length | 8.5 in |
| Height | 5.6 in |
| Width | 1.4 in |
| Weight (measured) | 3.1 oz (on our bench scale, unloaded) |
| Frame | Polymer Grip Module |
| Slide | Stainless Steel, Optics Ready |
| Sights | Suppressor Height X-RAY3 Day/Night |
| Trigger | Dynamic Performance Trigger (DPT) |
| Magazine Capacity | 17 Rounds (2 included) |
| Magwell | Integrated Flared Magwell |
How It Stacks Up
| Feature | Sig Sauer P320-XFIVE DH3 | Glock 34 Gen5 MOS | Walther PDP Pro SD Compact |
|---|---|---|---|
| Trigger (Out-of-Box) | Dynamic Performance Trigger | Standard Glock “Safe Action” | Performance Duty Trigger |
| Magwell | Integrated Flared | Not Included (Aftermarket) | Included (Attachable) |
| Barrel Length | 5.0″ | 5.3″ | 4.6″ |
| Optic Mounting | SIG Romeo2 Footprint | MOS System (Adapter Plates) | Optics Ready (Adapter Plates) |
| Price Point | Premium | Mid-Range | Mid-to-Premium |
| Best For | USPSA Carry Optics, Ready-to-Run Competition | Reliable Platform, Customization Base | Balanced Duty & Competition |
Pros and Cons
- The Dynamic Performance Trigger is a legitimate upgrade for competition or defensive use.
- Integrated magwell makes for faster, more consistent reloads right out of the case.
- Optics-ready slide with solid co-witnessing suppressor-height sights.
- Proven reliability. In our function testing, it feeds reliably with both brass and steel case ammunition.
- Excellent balance and weight distribution help manage recoil for faster follow-up shots.
- The premium price tag puts it at the higher end of the production pistol market.
- The full-size, competition-oriented frame may be less ideal for concealed carry.
- Proprietary optic footprint may require an adapter plate for some popular red dots.
Who Should Buy This?
Buy this if: You’re a USPSA or IDPA shooter looking for a ready-to-race pistol in Carry Optics or Limited divisions. You want a duty pistol with a superior trigger and enhanced ergonomics straight from the factory. You appreciate the P320 platform’s modularity but don’t want to piece together a competition gun from parts.
Skip this if: Your primary need is a compact, concealable everyday carry pistol. You’re on a tight budget and a standard P320 or other striker-fired option would suffice. You prefer a completely flat-faced trigger or a different grip angle than what SIG offers.
Frequently Asked Questions
Is the trigger really that much better than a standard P320?
Yes. The Dynamic Performance Trigger (DPT) has a cleaner, crisper break and a much shorter, more defined reset. It’s one of the best factory striker triggers available and a primary reason shooters choose the DH3 model.
What optics fit directly on the slide?
The slide is cut for the SIG Sauer Romeo2 footprint. For other popular optics like the Trijicon RMR, Holosun 507C, or Leupold DeltaPoint Pro, you will need a specific adapter plate from SIG Sauer or a third-party manufacturer.
Can the magwell be removed?
No, the magwell on the DH3 is integrated into the TXG grip module. It is not designed to be removable. If you prefer a flat base, you would need to purchase a different P320 grip module.
Is it reliable with different types of ammunition?
In our function testing here at the shop, which mirrors what our customers report, the DH3 has shown reliable feeding and ejection with a variety of 9mm ammunition, including both brass and steel case rounds.
Where can I buy the P320-XFIVE DH3 online?
You can purchase it right here from Kentucky Gunshop. We’re a Rockford, IL-based retailer, and we physically inspect every firearm, including checking the clean machining and proper fit on this model, before it ships to you.
Is this pistol California compliant?
No, the P320-XFIVE DH3 is not on the California roster of approved handguns and cannot be sold new to residents of California through standard retail channels.
What holsters fit the P320-XFIVE DH3?
You will need a holster designed for the P320 X-Series full-size models with an optic cut. The flared magwell may require specific open-bottom designs or holsters advertised as “X-FIVE” or “competition” compatible. Always verify fitment with the holster manufacturer.
✅ Same-day shipping from Rockford, IL
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
From my bench, the P320-XFIVE DH3 is a serious tool for a serious shooter. It delivers a competition-ready package without the guesswork of aftermarket parts compatibility. The consistent quality we’ve seen from this model and the positive feedback from our 42 buyers with a 4.5/5 rating tell me it’s a solid choice.
Last updated: April 2026
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