Crimson Trace LG 420 Laser Sight

The Crimson Trace LG-420 Laserguard is a perfect addition to your defensive arsenal. This laser guard features a 5mW peak, 515-532nm visible green laser that is in conformance with and complies with 21 CFR 1040.10 with a max power output of 5mW for a Class 3R Green Laser. It also features front activation button that allows you to engage the laser immediately when the firearm is held in a normal firing grip. The LG-420 is also factory sighted at 50 feet, but is fully user adjustable for windage and elevation with provided tools.

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  • The Crimson Trace LG420 Laserguard is a powerful red laser sight for the Sig Sauer P320 pistol.
  • The LG420 is quickly and easily userinstalled in moments and offers a front activation button powered by Crimson Trace’s Instinctive Activation technology.
  • The laser sight will provide four (4) hours of battery life with a single 1/3N Lithium battery and features a quick change battery cover for replacement without removal of the unit.
  • As with all Crimson Trace laser sights, the LG420 is completely useradjustable for windage and elevation.


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  • Very Bright
  • Easy To Line Up
  • Reliable
  • Free Batteries For Life


  • May Not Fit All Pistols