Super sturdy but do the job - Strike Industries Standard Height U-Notch Iron Pistol Sight

I was trying to install these to Strike Industries Liteslide for G17 and you would think that they should fit each other perfectly.. Wrong! I almost broke my rear sight tool half-way in, heating didn’t help, using a punch did nothing.. eventually, I used hammer on the crank of the sight tool and they finally gave in. Not sure I would need the retention screw on the rear sights after that. Besides this, seem to be functional. Package includes a small vial of blue loctite but no front sight tool so make sure you have it.