Completely internal! Keep your current holster for your GLOCK, keep your tactical lights, keep your favorite grips. The LaserMax Guide Rod Laser for GLOCK meets or exceeds both Mil-Spec and Homeland Security durability test standards (drop tests, blowing sand, temperature and humidity extremes, salt water fog, deep water immersion, 20,000+ rounds live fire).
Features of Lasermax LMS-1151P Guide Rod Laser for Glock
- For: GLOCK 20, GLOCK 21 (**Will NOT fit the new Gen4 GLOCK**)
- Battery Model: LMS-3x393 (readily available silver oxide batteries commonly used in watches)
- Accuracy (20 Yards): ±2" POA
- Laser Operating Temperature: 15°-120° F
- Wavelength: 635nm (red-orange)
- Power Output: 5mW (brightest available - pulses for highest visibility)
- Spot size: at 7 yds 5/16", spot size at 25 yds 3/4"
- If any firearm has been ported, fluted or compensated either by the original manufacturer or by a gunsmith, LaserMax will NOT guarantee alignment Please Note: Expect to change your batteries once a year with typical usage
- 2 Battery operating temperature is 15°F-120°F
