Sig Sauer P320 Night Sights for sale
(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-XFULL 9mm 4.7" Bbl CA Compliant Optics Ready Pistol w/(2) 10rd Steel Mags, & XRAY3 Day/Night Sights 320XF-9-BXRP3-MS-CA
Action:
Striker Action
Barrel Length:
4.7"
Caliber:
9×19mm Parabellum
Capacity:
10+1
Finish Per Color:
Black
(20)
Sig Sauer P320 AXG Equinox 9mm 3.9" Barrel 17-Rounds Night Sights
Brand:
Sig Sauer
Action:
Pistol
Barrel Length:
3.9in
Caliber:
9×19mm Parabellum
Capacity:
17
Finish Per Color:
Black
(1)
Sig Sauer P320 Nitron Carry 9mm Pistol w/ Night Sights, Black
Brand:
Sig Sauer
Action:
Semi-Auto
Barrel Length:
3.9"
Caliber:
9×19mm Parabellum
Capacity:
17
Finish Per Color:
Black
(4)
Sig Sauer P320 Compact 9mm with Night Sights 320C-9-BSS
Brand:
Sig Sauer
Action:
Double Action
Barrel Length:
3.9 BARREL
Caliber:
9×19mm Parabellum
Capacity:
15
Finish Per Color:
Nitron
(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
(0)
Sig Sauer P320 .45ACP Full Sized Pistol with Night Sights, Black - 320F45BSS
Brand:
Sig Sauer
Action:
Semi-Auto
Barrel Length:
4.7in
Caliber:
.45 ACP
Capacity:
10+1
Finish Per Color:
Black
Marketplace Insights
★ 4.8/5
based on 45 customer reviews across 8 variants from 33 retailers
Customers overwhelmingly praise the P320 for exceptional accuracy, comfort, and trigger quality, with only minor concerns about size and occasional service issues.
What customers like
Accuracy & Performance62%
Accurate as heck, reliable, and beautiful all rolled up in one.
Ergonomics & Grip51%
Better ergonomics than I had anticipated
Trigger Quality38%
The trigger pull is just right with a clean break and crisp quick reset.
Recoil Management33%
Minimal recoil. It's my new favorite after putting just 100 rounds through it.
Appearance & Design27%
This is a sexy looking pistol.
Common concerns
Size Not Compact Enough7%
Not really that compact. It has a short barrel but I would not call this a compact gun.
Customer Service Issues4%
Customer service is horrible especially when waiting 26 minutes on the phone.
Frequently Asked Questions
Sig Sauer P320 Night Sights for sale
What sights fit the SIG P320?
SIG P320 optics-ready slides accept the SIG ROMEO1PRO, ROMEO2, Trijicon RMR, and Leupold DeltaPoint Pro. Standard iron sights from XS Sights and Trijicon fit all P320 models. Confirm your slide has the correct optics cut before purchasing.
How long will SIG Night sights last?
SIG night sights use tritium, which glows for about 10 years before noticeably dimming. Some users report usable brightness beyond that, though intensity gradually decreases. They remain mechanically functional long after the tritium fades.
What night sights does SIG use?
SIG produces its own SIGLITE night sights, which use tritium inserts. They also offer pistols with Trijicon night sights. The R3D 2.0 tritium sights are a popular aftermarket upgrade. Compatibility varies by model, so confirm fitment before purchasing.
What red dot sights fit SIG P320?
SIG P320 optics-ready slides are compatible with several red dots, including the SIG ROMEO-X Compact, ROMEO1PRO, Holosun SCS 320, Trijicon RMR Type 2, Leupold DeltaPoint Pro, and Vortex Defender CCW, among others. This list is not exhaustive—verify your slide's specific footprint cut before purchasing.
Are tritium sights worth it?
Tritium sights glow without batteries and last mechanically for decades, though brightness fades after roughly ten years. They're worth it for defensive carry in low-light environments. Less necessary if you shoot primarily in daylight or already run a red dot optic.
What are the disadvantages of tritium sights?
Tritium sights fade over time, becoming noticeably dimmer after about 14 years. They cost more than standard sights, offer no daytime advantage over iron sights, and must be replaced once depleted. They are non-exportable from the US and largely redundant if you already use a red dot optic.
Is the SIG P320 drop safe now?
Yes, SIG updated P320 production and offered a voluntary trigger upgrade after 2017, and SIG states current models meet or exceed US safety standards. However, the drop safety controversy remains unsettled, with ongoing litigation and reported incidents continuing to raise concerns about unintentional discharge.
Is tritium illegal in the US?
Tritium itself isn't illegal in the US. Civilians can legally own items containing tritium, such as firearm night sights. However, manufacturing and distributing tritium self-luminous products requires a federal license under 10 CFR § 30.19. Commercially sold tritium products already comply with these regulations.