Crimson Trace LG420 Laserguard 5mW Red Laser, 633nM Wavelength, 50ft Range, Black Finish for Sig P320, M17, M18 (Excludes Subcompacts)

The Crimson Trace LG420 Laserguard is a 5mW red laser sight built specifically for the Sig P320, M17, and M18 pistols—the workhorses of duty carry, competition, and serious defensive training. Unlike bulky add-ons, the LG420 integrates into your grip, keeping your sight picture uncluttered while putting a precise aiming point exactly where you need it. The 633nM red laser projects a sharp, visible dot out to 50 feet, giving you quick target acquisition in low light or high-stress scenarios without breaking your grip or sight alignment.

Crimson Trace's laserguard design is built for shooters who value speed and reliability. Whether you're training at the range, working through defensive drills, or carrying for personal protection, the integrated grip-mounted laser keeps both hands on the gun and your focus on the target. The black polymer construction is durable enough for duty use while maintaining the ergonomics of your P320 platform.

This laser is not compatible with P320 Subcompact models, so verify your exact platform before ordering. For P320 standard frame, M17, and M18 shooters looking to add a reliable, proven laser sight to their carry or duty setup, the LG420 delivers the precision you need without the bulk.

Key Features

• 5mW red laser with 633nM wavelength for clear, visible aiming point
• 50-foot effective range for defensive and training applications
• Grip-integrated design maintains natural P320 ergonomics
• Black polymer construction for durability and professional appearance
• Quick target acquisition in low-light conditions

Specifications

Frequently Asked Questions

Will this laser work on my P320 Subcompact?

No. The LG420 is designed for standard P320 frames, M17, and M18 pistols only and is not compatible with Subcompact models.

What's the effective range of the red laser?

The 633nM red laser is visible and functional out to 50 feet, making it effective for defensive and training scenarios at typical engagement distances.

Does the laser affect the grip feel of my P320?

The LG420 is integrated into the grip, so it maintains the natural ergonomics and feel of your P320 while adding the laser functionality.

Is this laser sight suitable for duty or defensive carry?

Yes. The 5mW red laser and grip-mounted design make the LG420 well-suited for duty carry, personal defense, and training with your Sig P320, M17, or M18.