This should still work with a Polymer80 build as long as you are doing a gen 3 build rather than a gen 4.
The Lasermax Guide Rod Laser Sight for Glock Pistols is non adjustable. According to manufacturer the Internal Guide Rod lasers come permanently aligned from the factory for center-of-mass accuracy at 20 yards, it will never drift out of alignment.
The Lasermax Guide Rod model MPN:LMS-1141P is compatible with the Gen 1 Glock 17.
There is not a Lasermax Guide Rod Laser Sight for Glock Pistols for a Glock 44.
The Lasermax Guide Rod Laser Sight for Glock 26 Gen 4 will not work in a Glock 26 Gen5.
Unfortunately there is not a Lasermax Guide Rod Laser Sight for a Gen 5 Glock 23.
The Lasermax Guide Rod Laser Sight for Glock Pistols model LMS-1151G will not fit a Gen 4 Glock 20. However, the LaserMax Guide Rod Red Laser Sight for Glock 20/21/41 at the link below will work for a Glock 20 Gen 4.
https://www.opticsplanet.com/lasermax-guide-rod-red-laser-sight-for-glock-20-21-41.html
This item is activated by the slide take down. it does have an automatic shut off after 10 minutes to avoid draining the battery.
This item comes with a red beam color.
This item fits Glock 27 models 1-4.