Amazon. Anything with a dovetail you can do yourself with a brass punch. For Glock you'll just need the tool for the front sight which is super cheap. Very easy install. You might also check Glock.com and look how cheap their steel tritium sights are, I was shocked. You can always find a LGS to do it too. All good options. The one thing I don't have enough of is time so Amazon is how I got my last set.
Before anyone gives me any crap for using a punch rather than pusher, Dawson sends their competition sights with a front sight tool and punch in the kit.
Before anyone gives me any crap for using a punch rather than pusher, Dawson sends their competition sights with a front sight tool and punch in the kit.