Description
The Sig Sauer P320 Compact 9mm 3.9in Optic Ready (2) 10rd Mags is a modular striker-fired pistol built for concealed carry and range versatility. It ships with SigLite night sights, a Nitron finish, and two 10-round magazines—ready for optics right out of the box.
| Manufacturer | Sig Sauer (per manufacturer specs) |
|---|---|
| Model | P320 Compact |
| Material | Stainless steel slide, polymer grip module |
| Compatibility | 9mm Luger, accepts P320-series holsters and optics plates |
| Finish | Nitron |
| Weight | 25.8 oz (unloaded, per manufacturer specs) |
| Condition | New |
Key Features
- Optic-Ready Slide – Why it matters: You can mount a red dot without sending the slide to a machine shop, saving time and money.
- SigLite Night Sights – Why it matters: Tritium inserts provide low-light visibility for home defense or after-dark carry.
- Modular Grip Module – Why it matters: Swap grip sizes or colors in seconds to fit your hand or change concealment profile.
- Nitron Finish – Why it matters: Corrosion-resistant coating stands up to sweat, holster wear, and range dust.
- Two 10-Round Magazines – Why it matters: Spare mag means faster reloads and compliance in restricted-capacity states.
Who It’s For
This pistol suits shooters who want a do-it-all 9mm: compact enough for daily carry, accurate enough for target work, and optic-ready for modern red-dot setups. It also fits buyers in states with 10-round magazine limits who still want a proven platform.
Pros & Cons
Pros: Modular grip, excellent trigger out of the box, reliable across thousands of rounds (verified by military trials). Con: The striker-fired trigger pull is longer and heavier than a single-action hammer gun, which some competition shooters dislike.
Comparison vs. Competitors
| Feature | Sig Sauer P320 Compact | Zev Technologies OZ9 Compact | Agency Arms Syndicate |
|---|---|---|---|
| Price | $487.33 | $1,299 | $1,895 |
| Optic Ready | Yes (factory) | Yes (factory) | Yes (aftermarket) |
| Trigger | Striker, 5.5-6.5 lb pull | Striker, 4 lb pull | Striker, 4.5 lb pull |
| Magazine Capacity | 10 rounds (included) | 17 rounds | 17 rounds |
| Modular Grip | Yes (polymer) | Yes (aluminum) | No (fixed) |
FAQ
Does this model come with suppressor-height sights for an optic?
No, it ships with standard SigLite night sights. You may need taller sights to co-witness with a red dot—check your optic base height.
Is the grip module interchangeable with other P320 sizes?
Yes, the modular grip module swaps with full-size, carry, or subcompact frames. You can also buy aftermarket modules from Wilson Combat, Grayguns, and others.
What optics fit the factory cut?
Sig Sauer uses the Romeo1 Pro footprint. Adapter plates are available for Trijicon RMR, Holosun 407C/507C, and Leupold DeltaPoint Pro.
Can I use standard P320 17-round magazines in this compact?
Yes, but they will extend past the grip. For flush fit, stick with 10- or 15-round compact mags.
Why Buy From Us
✔ Nationwide delivery (all 50 states) — we ship to your FFL. ✔ Ships 1-2 business days from our warehouse. ✔ 30-day returns on unaltered firearms. ✔ Secure checkout with encrypted payment.
Browse more in our Semi Auto Handguns or check out Concealed Carry and Optic Ready Pistols.
Last updated: April 2026
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