Sights are, left to right, Classic Straight Eight, Standard SlantPro, and Standard SlantPro.  Before I get into the Straight Eight, let me talk a little about the SlantPro.  The rear of the sight is ramped to minimize glare.  All Heinie sights have a matte finish, and serrations to reflect light, but even in direct sun the SlantPro will not reflect light back into your eyes and will provide a crisp sight picture.  That's the main goal of the ramping of the sight.

The Straight Eight is one of the better night sights available.  I don't know if it's the best, but the vertical dot alignment does seem to work.  Combined with the clean sight picture and you have a combination of fast low light sights and very accurate day sights.  I don't think they're as fast as the XS Big Dot, but there may be some added precision in using the vertical dot concept with what are essentially a target sight format.

Heinies are also built tough.  They are sometimes prone to rusting (which is weird on a GLOCK) but the chances of them breaking or even drifting are very low.  Each rear sight is held in place with a big set screw.  I suggest using medium (blue) or high (red) loctite with the set screw once you've set them in place.  They're not going anywhere.  The front sight is clamped in place by a 3/16-inch nut, which I'd also suggest using medium or high strength loctite.  Once everything sets up they are good to go.  Just remember to wipe them down with a light oil every once in a while.  I know, wiping a GLOCK with oil, it's weird.

SMASHY

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