The Crimson Trace LG-489 Laserguard transforms the Smith & Wesson M&P Shield into a precision-ready defensive pistol with instant target acquisition capabilities. This red laser sight mounts directly to the trigger guard without requiring rail space or modifications to the firearm.
What Makes This Different
Unlike bulky rail-mounted lasers, the LG-489 integrates seamlessly with the M&P Shield's compact profile while maintaining access to existing holsters. The pressure activation switch responds to natural grip pressure, eliminating fumbling for buttons during high-stress situations. Crimson Trace's proven laser technology delivers consistent beam alignment shot after shot, with windage and elevation adjustments that hold zero through thousands of rounds.
Key Features
- Instinctive activation - engages automatically when gripping the pistol naturally
- Red laser diode produces 5mW output with 50-foot daylight visibility
- Polymer construction adds minimal weight while maintaining durability
- Tool-free windage and elevation adjustments for precise zeroing
- Compatible with most existing M&P Shield holsters
- Four-hour continuous runtime on single 1/3N lithium battery
- Ambidextrous activation accommodates both right and left-handed shooters
Field performance remains consistent across temperature extremes and recoil stress. The laser maintains accuracy during rapid-fire sequences and provides clear dot visibility in low-light conditions where iron sights become difficult to acquire. Law enforcement and civilian users report faster target engagement times compared to sight-only configurations, particularly in defensive scenarios where split-second decisions matter.
Technical Specs
- Laser Output: 5mW, 633nm red diode
- Activation: Instinctive front activation pad
- Battery: 1/3N lithium (included)
- Battery Life: 4+ hours continuous use
- Adjustment: Tool-free windage and elevation
- Construction: High-impact polymer housing
- Temperature Range: -10°F to +140°F operating
- Compatibility: Smith & Wesson M&P Shield 9mm/.40 S&W
- Warranty: 3-year full warranty
- Made in USA
The LG-489 addresses the M&P Shield's primary limitation - sight acquisition speed in defensive situations. Professional installation takes minutes, and the laser holds zero through extended shooting sessions without requiring constant readjustment.