Enclosed red dot sights can make a major difference for your SIG P320 in rainy weather or snow, especially for those live up north. Here's a look at some standout options to elevate your experience with your favorite firearm.

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Common Problems with Open Emitter Red Dot Sights

  • Durability: Open designs are exposed to damage.
  • Weather Resistance: Open sights can fog up or gather water and snow clog.
  • Battery Access: Some require taking the sight off to change the battery.
  • Compatibility: Not all red dots fit onto the P320 with its confusing slide footprint

Top Enclosed Red Dot Sights For P320

Aimpoint ACRO P-2

Aimpoint ACRO Bottom View
  • Pros: Built tough, enclosed, easy side battery change, lasts long. Tried in tough conditions — ideal for those who need reliability.
  • Cons: Steep price, often needs an adapter for fitting.
  • Best For: Tactical needs and heavy-duty use.
steiner mps
  • Pros: Small, light, very durable. Has recessed lens and many brightness settings.
  • Cons: Smaller view window might be a limiter.
  • Best For: Concealed carry or tasks where size matters.
sig romeo 2
  • Pros: Modular, fog-proof, several reticle choices. Added MOTAC tech for battery life.
  • Cons: By default, not enclosed but adaptable.
  • Best For: Fans of the SIG system looking for options.
holosun 509t unboxing
  • Pros: Solid build, solar power, multiple reticles. "Shake awake" keeps the battery going.
  • Cons: Needs an adapter to fit the P320.
  • Best For: Those watching their budget but want features.
holosun EPS vs EPS Carry field of view
  • Pros: Compact, reliable, offers various reticles, and battery is easy to reach.
  • Cons: Less view compared to other models.
  • Best For: When you want a compact sight for discreet carrying.
SIG Sauer ROMEO X Pro enclosed
  • Pros: Tailored for P320, allows co-witness, multiple reticles. Built enclosed for extra toughness.
  • Cons: Not always easy to find.
  • Best For: P320 users seeking seamless integration.

Considerations and Alternatives

  • Cost and Value: Though high-end choices like the Aimpoint ACRO P-2 are pricey (chase $600), they offer impressive toughness. Affordable picks like Holosun HE509T offer durability around $300.
  • Misconceptions: Enclosed red dots aren’t just for looks; they provide protection in bad weather.