High Visibility HIVIZ NPSW1002-G Green Fiber Optic Front Sight for Pistols & Rifles - Perfect for Hunting, Target Shooting & Home Defense

Seems to be of excellent quality, and the sight picture it provides is, IMHO, a VAST improvement over the red ramp factory front site.Installation is easy, but A WORD OF WARNING: this site does NOT come pre drilled. It is meant to be installed by a gunsmith (or someone with some skills, tools, and somewhat specialized equipment). What this means is that you'll have to remove the roll pin from the factory site, slide this site into place, then either mark or drill this site with a tiny drill bit to accommodate the roll pin when it is re-installed. If you want to do this yourself, you'll want a #55 wire gauge drill bit. FYI, these drill bits are TINY and will most likely not fit in any standard drill chuck. You'll need some kind of adaptor for your drill (available on Amazon for cheap), and doing it yourself with any type of handheld drill is just asking for trouble. It really should be done on a drill press so the hole can be exactly perpendicular to the site.Hope this helps!