How do I change the front sight on my Neos pistol?

Early production Neos pistols used a spring pin to secure the front sight. These models can be identified by inspecting the rib just below the sight blade. You should find a hole drilled on each side at this point. Use a drift punch to remove the spring pin and then pull the blade up. Late model pistols have only 1 hole located on the right side of the rib. This hole is threaded for a set screw. To remove the sight blade, use a 1.5 mm Allen wrench and turn the set screw counter clockwise to loosen it