I purchased a set for my glock 36. The front sight screw does not allow the barrel to seat properly, causing the the slide not to be able to be reattched. I have contacted the company in regards to the issue because they advertise these sights as all glock 45's. Not true. I had to buy a competitor's front site, costing another $42. If you have a glock 36, go with the Ameriglo tritium, brighter, and made specifically for the model of your gun.

Amazing product.

While these sights do glow brilliantly and installed with very little trouble at all, I have found a problem with this particular design in all three of the H&K USP Tactical .45s I''ve installed these on. The rear sight, bottomed-out as far as its height-adjustment screw will take it, still isn''t far enough to get a proper sight alignment at 25 yards. Either the front sight needs to be higher (preferable, of course), or that rear sight needs to be on a taller base. The factory sights had lots of adjustment room in them, and all three of them shot pretty much to point-of-aim at 25 yards with a few different 230-grain rounds. But these Meprolights require the shooter to adjust his/her sight picture in order to make the things work. Of all of the Meprolight night sights I''ve installed, these are the only ones that have been a problem. That rear sight needs to be able to click down about half a dozen more ticks than it''s able to do in order for things to line up properly.