LaserMax LMS1151G Green Guide Rod Laser for Glock 20/21 Gen 1-3

The LaserMax LMS1151G is a dedicated guide rod laser designed for Glock 20, 20SF, 21, and 21SF pistols across Gen 1–3. It replaces the factory spring guide assembly with an integrated green laser to aid target acquisition in low-light conditions. The unit installs without gunsmithing or special tools and uses rugged components including aircraft-grade aluminum and Wolff springs. The laser operates at a 520nM wavelength with a 5mW output for high-visibility aiming reference.

Key Specifications

• The finish is Black.
• Compatible with Glock 20/20SF/21/21SF Gen 1-3.
• The laser color is Green.
• The mount type is a Guide Rod Assembly.
• The rated power output is 5mW.
• The wavelength is 520nM.
• The effective range is listed as 50 Meters.
• The unit weight is 0.76 oz.
• The battery size is 393.
• The dot size is 0.63″ at 20 Yards.

Built for discreet integration and straightforward field serviceability, the LMS1151G offers a compact, lightweight way to add a high-visibility aiming reference to compatible Glock pistols. Its durable construction and tool-free installation make it a practical upgrade for duty, competition, or personal carry setups where rapid target acquisition in low light is desired.