Crimson Trace LG457 Laserguard 5mW Red Laser for 9mm Luger & .40 S&W (S&W SD VE, SD) - 633nM Wavelength, 50 ft Range, Black Finish

The Crimson Trace LG457 Laserguard is a compact red laser sight built specifically for Smith & Wesson SD and SD VE pistols in 9mm Luger and .40 S&W. This 5mW laser projects a bright red dot at 633nM wavelength, giving you a dependable aiming reference for defensive shooting, low-light situations, and target work. The black polymer housing integrates seamlessly with your SD platform, and the 50-foot effective range keeps you on target where it counts—up close and in the moment when accuracy matters most.

Laserguard sights aren't about replacing iron sights or scopes; they're about adding a fast, intuitive aiming option to your carry gun. A visible red dot helps you acquire your target quickly, especially in marginal lighting or from unconventional shooting positions. The LG457 mounts directly to your SD or SD VE, turning your existing carry pistol into a more versatile platform without the weight or bulk of optics.

If you run a Smith & Wesson SD defensive pistol and want to sharpen your shot placement with a laser sight, the Crimson Trace LG457 gives you proven technology in a compact, durable package. It's practical gear for shooters who value speed and simplicity at close range.

Key Features

• 5mW red laser at 633nM wavelength for clear target acquisition
• Designed specifically for S&W SD and SD VE platforms in 9mm Luger and .40 S&W
• 50-foot effective range for defensive and training use
• Durable black polymer construction
• Compact, integrated mounting—minimal addition to your carry footprint

Specifications

Frequently Asked Questions

What Smith & Wesson pistols does the LG457 fit?

The Crimson Trace LG457 Laserguard is designed to mount directly on the S&W SD and SD VE in both 9mm Luger and .40 S&W. These are your compatible platforms for this laser sight.

How far can you see the red laser dot?

The LG457 has an effective range of 50 feet. This range covers the distances where most defensive encounters and training drills take place, and the red dot remains visible and useful in low-light conditions where it shines brightest.

Does this laser replace my iron sights?

No. The LG457 is an addition to your defensive setup, not a replacement for your iron sights. It works best as a supplement that helps you acquire your target quickly, especially in poor lighting or non-standard shooting positions. Your standard sights remain your backup.

What color is the laser and how bright is it?

The LG457 projects a bright red laser at 633nM wavelength with 5mW output. Red lasers are excellent for defensive use and remain visible in most indoor and outdoor lighting conditions, though they perform best in lower light.