LaserMax Green Guide Rod Laser Sight for Glock 20/21/20SF/21SF Gen 1-3, 5 mW 520 nm, LMS1151G

Product Description

The LaserMax LMS1151G is an internal guide rod green laser engineered specifically for Glock 20, 20SF, 21, and 21SF pistols (Generations 1–3). Replacing the factory spring guide assembly, this rugged unit delivers a bright 520 nm green aiming point to speed target acquisition without altering the pistol’s profile, holster fit, or balance. Installation is user-friendly with no gunsmithing required, and the assembly is built from aircraft‑grade aluminum with genuine Wolff springs for dependable performance. Offering manual activation with constant or pulse modes, water‑resistant construction, and ambidextrous use, the LMS1151G is a purpose‑built upgrade for duty, defense, and training.

Product Highlights

• Internal guide rod design preserves factory fit and holster compatibility
• Bright 520 nm green laser with constant beam or pulse operation
• User-installable with no special tools; includes battery and hardware
• Rugged aircraft‑grade aluminum construction with Wolff springs
• Manual activation; ambidextrous use and water‑resistant build

Specs

• Compatibility: Glock 20, 20SF, 21, 21SF (Generation 1–3)
• Laser Color/Wavelength: Green, 520 nm
• Output: 5.0 mW
• Dot Size: 0.63 in at 20 yards
• Modes: Constant beam or pulse
• Range: 50 meters
• Switch Type: Manual
• Hand: Ambidextrous
• Mount Type: Guide Rod Assembly (internal)
• Material: Aircraft‑grade aluminum with Wolff springs
• Color: Black
• Power Source: 393 battery (included)
• Run Time: Up to 1 hour
• Weight: 0.76 oz
• Water Resistance: Yes
• Includes: Laser, mounting hardware, battery
• UPC: 798816542622
• MPN: LMS1151G
• Brand: LaserMax

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