This Guide Rod Laser fits the GLOCK 17L, GLOCK 24, GLOCK 34, GLOCK 35. Battery Model: LMS-3x393 (readily available silver oxide batteries commonly used in watches) Accuracy (20 Yards): ±2-Inch POA. Laser Operating Temperature: 15°-120° F. Wavelength: 635nm (red-orange) Power Output: 5mW (brightest available - blinks 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. Custom alignment quotes for firearms may be obtained by calling LaserMax. Please Note: 1. Expect to change your batteries once a year with typical usage. 2. Battery operating temperature is 15°F-120°F. 3. Does not fit the Gen4 model.

Product Features
Pulsating laser sight for faster target acquisition and re-acquisition
Extremely rugged lightweight and completely internal
Installation takes minutes with no gunsmith help needed
No alignment needed
Keep your holster - keep your tactical lights - keep your favorite grips

ASIN: B0002IMPEY
Item model number: LMS-1141LP