The Crimson Trace LG-457 Laserguard transforms Smith & Wesson SD and SD VE pistols into precision instruments with instant target acquisition capabilities. This red laser sight mounts directly to the trigger guard, providing consistent aiming reference without adding bulk or interfering with existing holsters. The activation system engages naturally during the shooting grip, eliminating fumbling for switches under stress.
What Makes This Different
Unlike rail-mounted lasers that require specific holster compatibility, the LG-457 maintains the original pistol profile while delivering professional-grade laser performance. The trigger guard mounting system distributes stress across a larger surface area compared to rail clamps, reducing the risk of zero shift during extended use. Crimson Trace's instinctive activation technology means the laser activates automatically when gripping the pistol properly, providing consistent performance without conscious thought.
Key Features
- Red laser diode with 5mW maximum output for daylight visibility
- Instinctive activation engages with natural shooting grip
- Polymer construction designed specifically for S&W SD/SD VE trigger guards
- Four-hour continuous runtime on single 1/3N lithium battery
- Windage and elevation adjustments with included hex wrench
- Master on/off switch prevents accidental activation during storage
- Maintains compatibility with most existing holsters designed for SD series
The LG-457 performs consistently across temperature ranges from -10°F to 120°F, making it suitable for duty carry, home defense, and competitive shooting applications. The laser maintains zero through hundreds of rounds, with the polymer housing absorbing recoil stress without transmitting vibration to the diode assembly. Low-light scenarios benefit most from the red dot's visibility, though the 5mW output remains effective in moderate daylight conditions at defensive distances.
Technical Specs
- Laser Output: 5mW red diode at 633-670 nanometers
- Battery: Single 1/3N lithium (included)
- Runtime: 4 hours continuous operation
- Operating Temperature: -10°F to 120°F
- Construction: High-impact polymer housing
- Weight: 0.9 ounces including battery
- Compatibility: Smith & Wesson SD9/SD40/SD9 VE/SD40 VE pistols
- Warranty: 3-year manufacturer warranty
- Country of Origin: USA
The LG-457 represents proven laser sight technology adapted specifically for Smith & Wesson's popular SD platform. Installation requires no gunsmithing, and the included battery provides immediate operational capability. This laser sight delivers the accuracy enhancement serious shooters demand without compromising the reliability that makes SD series pistols popular for personal protection.