Description
The SIG SAUER P365-DH3 AXG 9mm 3.7″ Coyote X-RAY3, 3x10rd is a collaboration with competitive shooter Daniel Horner, built to deliver serious controllability in a compact package. This 9mm handgun pairs a slide-integrated expansion chamber with a 3.7-inch barrel to keep muzzle rise manageable during rapid fire. From the factory, it ships with three 10-round magazines and X-RAY3 day/night sights.
| Manufacturer | SIG SAUER |
|---|---|
| Model | P365-DH3 AXG |
| Material | Stainless steel slide, AXG aluminum grip module (Coyote finish) |
| Compatibility | P365 magazines, SIG-LOC optic footprint |
| Finish | Coyote PVD Cerakote on slide |
| Weight | 21.5 oz (unloaded, per manufacturer specs) |
| Condition | New |
Key Features
- Slide-Integrated Expansion Chamber — redirects gas to reduce felt recoil and muzzle flip. Why it matters: you stay on target faster, which means tighter follow-up shots in competition or defensive use.
- DH3 Slide Serrations & Lightening Cuts — aggressive front and rear serrations plus slide cuts reduce mass. Why it matters: easier to manipulate the slide under stress, and the lighter slide cycles quicker for faster splits.
- AXG Modular Grip Module — aluminum frame with interchangeable polymer backstraps. Why it matters: you can dial in palm swell and trigger reach without buying a new gun.
- SIG-LOC Optic-Ready Slide — direct-mount footprint for popular red dots (e.g., Romeo-X, Holosun K-series). Why it matters: no adapter plates needed, so your optic sits lower and stays zeroed.
- Coyote PVD Cerakote Finish — corrosion-resistant coating on slide and barrel. Why it matters: holds up to holster wear and humid conditions without flaking or rusting.
Who It’s For
This pistol is built for the shooter who wants a compact 9mm that handles like a full-size. It’s for the competitor running carry optics division who needs a gun that tracks flat out of the holster. It’s also for the concealed carrier who refuses to trade shootability for size. If you run drills, shoot matches, or just want a defensive pistol with a tuned trigger and low bore axis, this is your lane.
Pros & Cons
- Pro: The expansion chamber actually works — measured muzzle rise reduction is noticeable compared to a standard P365. Per SIG SAUER specs, the DH3 design cuts felt recoil by roughly 15% versus a non-ported P365 barrel.
- Pro: AXG grip module gives a full-size feel without adding bulk. The 1911-style grip angle points naturally.
- Pro: X-RAY3 sights are bright in low light and co-witness with most red dots.
- Con: The expansion chamber makes the slide slightly louder and spits more debris upward. Not ideal for shooting from retention or inside a vehicle without eye pro.
- Con: Price tag sits north of $1,200 — you’re paying for the collaboration and machining. Budget shooters may balk.
Comparison vs. Competitors
| Feature | SIG SAUER P365-DH3 AXG | Zev Technologies OZ9C | Agency Arms AOS G19 |
|---|---|---|---|
| Caliber | 9mm | 9mm | 9mm |
| Barrel Length | 3.7″ | 4.0″ | 4.02″ |
| Weight (unloaded) | 21.5 oz | 24.0 oz | 22.1 oz |
| Grip Material | Aluminum (AXG) | Polymer with steel chassis | Polymer |
| Optic Mount | SIG-LOC (direct) | RMR footprint (plate) | Agency AOS (plate system) |
| MSRP | $1,229.99 | $1,499.99 | $1,399.99 |
| Magazines Included | 3x 10rd | 2x 15rd | 2x 15rd |
Frequently Asked Questions
What magazines are compatible with the SIG SAUER P365-DH3 AXG?
All standard P365 magazines work. The DH3 ships with three 10-round flush-fit magazines. You can also use 12-round and 15-round extended P365 mags, though the grip module is cut for flush 10-rounders.
Does the P365-DH3 AXG come with an optic?
No. The slide is optic-ready with the SIG-LOC footprint, but you’ll need to buy your red dot separately. SIG SAUER recommends the Romeo-X compact or any Holosun K-series optic.
Is the expansion chamber on the DH3 legal everywhere?
Check your local laws. The slide-integrated expansion chamber is not a threaded barrel, but some states (e.g., California, New York) restrict ported barrels on handguns. The DH3 is not currently on the California Roster.
Can I swap the AXG grip module for a standard P365 grip?
Yes, the DH3 uses the same fire control unit as all P365 variants. You can drop it into any P365 grip module, including polymer or aftermarket options. The AXG module is wider, so holster fit may change.
What holsters fit the P365-DH3 AXG?
Holsters made for the P365 AXG with a rail (e.g., TXC, Tier 1 Concealed, Safariland) typically work. Avoid holsters designed for the standard P365 without the rail — the AXG module is slightly wider at the trigger guard.
Why Buy From Us
- ✅ Nationwide delivery (all 50 states) — we ship to your FFL
- ✅ Ships 1-2 business days — most orders go out same day if placed before 2 PM EST
- ✅ 30-day returns — unused, unfired firearms can be returned for refund
- ✅ Secure checkout — encrypted payment processing, no data leaks
Browse more semi-auto handguns in our Semi Auto Handguns category, or check out SIG SAUER and Competition Pistols for similar builds.
Last updated: April 2026
According to the 2025 NSSF industry report, SIG SAUER holds a 23% market share in the domestic handgun segment, making the P365 line one of the most popular concealed carry platforms in the U.S.
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