We sell them and I have installed a bunch of them on different firearms. They have done a real good job with the redesigned grips like the 1911 and the new ones like the Glock. The Glock grip, IMO, actually makes the Glock grip feel much better than factory. Their best feature is that the on button is positioned so that the laser comes on when you grip the firearm like you are going to shoot it. There are no external on off switches that you hve to manually operate in the heat of a bad situation.

The laser is fully adjustable for windage and elevation so you can position the laser dot to intersect the bullets path at just about any distance you choose.

They make a great product and I would not hesitate to put one on any carry gun.