Good tight fit, solid adjustment, but not indestructible - Troy Rear Fixed BattleSight Dioptic Top Mounted Iron Sight

Installation is good. These mount up and zero easily. Fit and finish is very good. They are lightweight, being made out of aluminum. But by being aluminum, they are easily damaged. A garage drop bent the ear of the rear fixed sight inwards significantly, while the rifle showed no other damage. Was able to bend back, but makes me rethink fixed over folding, and metal over polymer again. A higher grade aluminum would be preferred.