Sig Sauer P320 Nitron Compact for sale
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Sig Sauer P320 Compact Nitron 9mm 3.9" Barrel 15-Rounds Optics Ready
Brand:
Sig Sauer
Action:
Semi-Auto
Barrel Length:
3.9"
Caliber:
9×19mm Parabellum
Capacity:
15+1
Finish Per Color:
Black
(20)
Sig Sauer P320 Nitron Compact .45 ACP Pistol w/ Night Sights, Black
Brand:
Sig Sauer
Action:
Semi-Auto
Barrel Length:
3.9"
Caliber:
.45 ACP
Capacity:
9
Finish Per Color:
Black
(0)
Sig Sauer P320 Nitron Compact 9mm Semi-Automatic Pistol, Blk - 320C-9-BSS-MS-MA
Brand:
Sig Sauer
Action:
Double Action
Barrel Length:
3.9 inches
Caliber:
9×19mm Parabellum
Capacity:
10
Finish Per Color:
Black
(5)
Sig Sauer P320 Nitron Compact 9mm Semi-Automatic Pistol, Blk - 320C-9-B-10
Brand:
Sig Sauer
Action:
Double Action
Barrel Length:
3.9"
Caliber:
9×19mm Parabellum
Capacity:
10
Finish Per Color:
Nitron
(0)
Sig Sauer P320 RXZP 9mm Compact 3.9in, Nitron, Blk, Striker, Mod Poly Grip, (2) 15rd Steel Mag, 3MOA ROMEO ZERO PRO Pistol 320C-9-B-RXZP
Brand:
Sig Sauer
Action:
Semi-Auto
Barrel Length:
3.9 inches
Caliber:
9×19mm Parabellum
Capacity:
15
Finish Per Color:
Black
(0)
Sig Sauer P320 RXZP 9mm Compact 3.9in, Nitron, Blk, Striker, Mod Poly Grip, (2) 10rd Steel Mag, 3MOA ROMEO ZERO PRO Pistol 320C-9-B-RXZP-10
Brand:
Sig Sauer
Action:
Pistol
Barrel Length:
3.9 inches
Caliber:
9×19mm Parabellum
Capacity:
10+1
Finish Per Color:
Black
(0)
Sig Sauer P320 Nitron Compact 9mm Pistol w/ Night Sights, Black
Brand:
Sig Sauer
Action:
Double Action
Barrel Length:
3.9"
Caliber:
9×19mm Parabellum
Capacity:
15+1
Finish Per Color:
Black
Marketplace Insights
★ 4.8/5
based on 25 customer reviews across 7 variants from 35 retailers
Highly praised for accuracy, ergonomics, and reliability, with exceptional shooter satisfaction and minimal concerns about size expectations.
What customers like
Accuracy & Shooting52%
Shoots absolutely fantastic, with hardly any recoil.
Ergonomics & Comfort48%
Grip contours make the double stack feel pretty good
Reliable Performance28%
striker-fires every time, and is highly accurate
Easy Maintenance16%
Breaking down the p320, literally takes about 5 seconds.
Fast Shipping16%
PSA shipped fast, it was @ my ffl dealer in a week
Common concerns
Size Not Compact12%
Not really that compact. It has a short barrel
Hand Fit Issues8%
I have large hands, but I think it was just not for me.
Frequently Asked Questions
Sig Sauer P320 Nitron Compact for sale
What is a P320 Nitron?
P320 Nitron is a Sig Sauer striker-fired pistol with a Nitron-coated stainless steel slide and SIGLITE or Steel 3-dot Contrast Sights. Available in 9mm and .45 ACP in full-size and compact frames, the compact includes two 15-round magazines and a hard plastic holster. Priced around $550 through numerous retailers.
Is it safe to carry a SIG P320 with a round in the chamber?
Yes, but with caveats. The P320 lacks a trigger safety and a striker block, and unintentional discharges have been reported. Use a quality holster that fully covers the trigger guard, keep your finger off the trigger, and be aware that any rearward trigger movement can fire a chambered round.
Is the SIG P320 available in .45 ACP?
Yes. The P320 is available in .45 ACP in full-size and compact configurations. The full-size holds 10 rounds with a 4.7-inch barrel; the compact holds 9 rounds with a 3.9-inch barrel.
What are common P320 problems?
Reported issues include unintentional discharges without trigger manipulation, trigger malfunctions, and occasional feeding problems. Sig addressed some concerns through recalls and voluntary upgrade programs. Holster selection matters—use one covering the trigger guard fully. Some ranges have restricted the platform due to safety concerns.
What is the best holster for the P320 compact?
Best holster depends on your carry method. For concealed carry, IWB options like Vedder LightTuck or Bravo Concealment work well. For open carry or range use, OWB paddle holsters offer quick access. Choose KYDEX construction that fully covers the trigger guard. Prices typically range $50–$150.
Can you put a red dot on a P320 compact?
Yes. The P320 Compact accepts red dots via adapter plates. Note that direct mounting of optics like the ROMEO-X Compact and Holosun SCS 320 without adapters applies specifically to the P320X Compact variant. Standard P320 Compact slides may require switching to a pre-cut slide. Confirm compatibility before purchasing.