LaserMax Hi-Brite Model LMS-1151 Fits Glock 20/21 LMS-1151P

for Glock 20, 21 Laser Sight

Features:

- Totally internal-cannot be knocked out of alignment
- No permanent modification to gun-remove it anytime
- No need to change holster or give up your rail flashlight
- Compatible with your favorite grips and aftermarket accessories
- Drops into place, replaces original recoil spring guide
- Ambidextrous switch in custom take-down lever
- Deliberate on/off activation-no squeezing the grip, no shaking
- Pulsating beam for increased visibility
- Factory aligned (1911 models are also user adjustable for fine tuning)
- Quality assurance includes live test firing

for Glock 20, 21