Description
The Sig Sauer P320 Compact 9mm 3.9 in 10rd MA Compliant delivers a factory-built, modular striker-fired pistol that meets Massachusetts compliance without sacrificing performance. Chambered in 9mm with a 3.9-inch barrel, this variant ships with two 10-round magazines, a manual safety, and SIGLITE night sights. The Nitron-finished slide and right-hand configuration keep it ready for practical use right out of the box.
| Manufacturer | Sig Sauer |
|---|---|
| Model | P320 Compact (MA Compliant) |
| Material | Stainless steel slide with Nitron finish, polymer frame |
| Compatibility | All P320 Compact holsters and grip modules |
| Finish | Nitron black |
| Weight | 25.5 oz (empty, per manufacturer specs) |
| Condition | New |
Key Features
- Modular Fire Control Unit (FCU) — The serialized chassis swaps between Compact, Carry, and Full-size grip modules, letting you change grip size and frame color without a new gun purchase.
- SIGLITE Night Sights — Tritium inserts provide low-light sight acquisition for duty or home defense use, standard on this MA-compliant build.
- Manual Safety — Ambidextrous safety lever adds an extra layer of carry confidence, especially for those transitioning from 1911-style pistols.
- 10-Round Magazines (x2) — Factory-restricted capacity meets Massachusetts law while keeping the grip length identical to standard Compact models for holster compatibility.
- Striker-Fired Trigger — Consistent 5.5–6.5 lb pull weight with a short reset reduces shot-to-shot recovery time during rapid fire.
Who It’s For
This P320 Compact fits shooters in restricted-capacity states who want the full modularity of the P320 platform. It works for concealed carriers who prefer a manual safety, for competition shooters building a USPA Production gun, and for anyone who wants a factory-compliant pistol that doesn’t compromise on night sights or trigger quality. If you already own a P320 Full-Size, this Compact gives you a smaller grip option with the same FCU.
Pros & Cons
- Pro: Interchangeable grip modules mean you can tune the frame size and texture without a gunsmith.
- Pro: SIGLITE night sights are included — no aftermarket upgrade needed for low-light use.
- Con: Manual safety adds an extra step during draw; some shooters prefer the standard P320 without it.
- Con: 10-round magazines limit capacity compared to standard 15-round Compact models, though this is required for MA compliance.
Comparison
| Feature | Sig Sauer P320 Compact (MA) | Zev Technologies OZ9 Compact | Lone Wolf Distributors Timberwolf Compact |
|---|---|---|---|
| Caliber | 9mm | 9mm | 9mm |
| Barrel Length | 3.9 in | 4.0 in | 4.0 in |
| Capacity | 10+1 (MA compliant) | 15+1 | 10+1 (restricted states) |
| Safety | Manual safety | None (striker control blade) | None |
| Trigger | Striker-fired, 5.5–6.5 lb | Striker-fired, 3.5–4.0 lb | Striker-fired, 5.0–6.0 lb |
| Modularity | Interchangeable grip modules | Interchangeable grip + chassis | Interchangeable backstraps |
| Price | $549.99 | $1,199.00 | $449.99 |
The Zev OZ9 offers a lighter trigger and aluminum chassis but costs more than double. The Lone Wolf Timberwolf provides a budget-friendly option but lacks night sights and manual safety. The Sig P320 Compact MA hits the sweet spot for shooters who want factory reliability, night sights, and compliance without stepping up to custom pricing.
FAQ
Is this P320 Compact CA or NY compliant too?
This model ships with 10-round magazines and a manual safety, which meets the requirements for most restricted states including California and New York. Check your local roster for specific approved models.
Can I swap the grip module to a smaller size?
Yes. The Fire Control Unit (FCU) fits all P320 grip modules. You can install a subcompact or carry-size grip module from Sig Sauer or aftermarket brands like Wilson Combat.
Does the manual safety affect holster compatibility?
No. The manual safety is internal to the FCU and does not change the external frame dimensions. It fits all standard P320 Compact holsters.
What night sights are included?
SIGLITE night sights with tritium inserts. They are standard on this MA-compliant variant and do not require battery power.
Trust & Shipping
- ✓ Nationwide delivery (all 50 states)
- ✓ Ships 1-2 business days
- ✓ 30-day returns
- ✓ Secure checkout
Explore more Semi Auto Handguns or check out Sig Sauer for other models. Last updated: April 2026.
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