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Holosun

Holosun LS321G

Tri-laser module combining visible green, IR laser, and IR illuminator

Quick Specs

Price
$849
Weight
7 oz
Brand
Holosun
Category
laser

Features

  • Visible green laser
  • IR laser
  • IR illuminator
  • Remote switch port

Capability Boosts

Night Vision+4
Low Light+1

Compatibility Tags

family: ar-patterninterface: picatinny-top

Overview

The Holosun LS321G combines a Class IIIa visible green laser, Class 2M IR laser, and IR illuminator in a single coaxially-mounted unit, providing a complete aiming solution for both day and night operations. Constructed from 7075-aluminum with a matte black anodized finish, the LS321G mounts via a quick-release Picatinny rail attachment and is powered by a single CR123 battery providing up to 5,000 hours of battery life. The coaxial design means all three lasers are slaved together—zeroing the visible green laser automatically dials in both the IR pointer and IR illuminator.

The rear-facing selector switch allows users to choose between visible low, visible high, IR high, IR illuminator, or IR high with IR illuminator, with activation via the included remote pressure switch or top-mounted button. Tactile windage and elevation adjustments enable precision zeroing without tools. While the visible green laser is impressively bright even on low settings and the IR laser performs well under Gen1+ night vision, the IR illuminator represents the unit's weakest component—a limitation shared by all civilian eye-safe multifunction laser systems.

At an MSRP of $941 (street price around $800), the LS321G positions itself as a more affordable alternative to the DBAL-A3 or ATPIAL-C while delivering similar performance. However, the weak IR illuminator has led many users to recommend pairing the standalone LS221G laser (around $550) with a dedicated IR weapon light for superior overall performance at similar total cost. The LS321G works best for users prioritizing an all-in-one package over maximum individual component performance.

Key Features

  • Triple coaxial lasers: Class IIIa green, Class 2M IR, IR illuminator
  • All lasers slaved together for simplified zeroing
  • Five operating modes via selector switch
  • 7075-aluminum construction with QD Picatinny mount
  • Single CR123 battery with 5,000 hour life
  • Compatible with SureFire SD-D-IT dual tape switch
  • Tactile windage/elevation adjustments

Pros

  • +All-in-one visible/IR laser and illuminator package
  • +Coaxial design simplifies zeroing procedures
  • +Excellent visible green laser brightness
  • +More affordable than DBAL-A3 or ATPIAL-C
  • +Exceptional battery life (5,000 hours)
  • +Solid build quality and durable construction

Cons

  • Weak IR illuminator effective only to ~75 meters
  • Product discontinued by Holosun (limited availability)
  • Better value buying standalone laser + dedicated IR light
  • IR illuminator sits high on rifle
  • Eye-safe illuminator inherently limited vs LED alternatives

Detailed Specifications

Laser Class
Class IIIa green, Class 2M IR
Wavelength
520nm (green), IR (Class 2M)
Battery Type
Single CR123
Battery Life
Up to 5,000 hours
Mount Type
Quick-release Picatinny mount
Material
7075-aluminum, matte black anodized
Switch Type
Rear selector switch + remote pressure switch

Compatible Platforms

+18 more

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