These are simple to install, it just replaces the recoil spring and rod. These are #1 choice of NYPD and they are the only NATO approved lasers for handguns!!
The take down button controls on and off function of the laser.
LMS-1131P For: GLOCK 19, 23, 32 w/ original & finger groove frame
LMS-1141P For: GLOCK 17, 18, 22, 31, 37 w/ original & finger groove frame
LMS-1151P For: GLOCK 20 and 21 w/ original style frame
LMS-1151P FGR For: GLOCK 20 and 21 w/ finger groove frame
LMS-1161 For: GLOCK 26, 27, 28, 33 w/ original or finger groove frame
LMS-1141LP For: GLOCK 17L, 24, 34, 35 w/ original or finger groove frame
LMS-1191 For: GLOCK 29 and 30 w/ original or finger groove frame
LMS-1181 For: GLOCK 36 w/ original or finger groove frame
For More information please visit the LaserMax website: http://www.lasermax-inc.com/products/glock.php
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: 3mW (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. NATO Stock No. 1005-99-500-4480 U.S. Patent Nos. 4,934,086 & 5,509,226. European Patent No. 0431097 Other worldwide patents pending.
Please Note:
1. Expect to change your batteries once a year with typical usage.
2. Cold weather batteries are available for some models. Call Factory for details.
3. Battery operating temperature is 15°F-120°F