Glock A-CUT/COA Combo Set - Standard Width AMERIGLO Optic Compatible sets provide a precise, elevated co-witness sight picture for slide-mounted red dot optics and serve as reliable back-up sights. Torque Specification: 16-inch lbs. Threadlock is pre-applied on screw. Fits: Glock Gen 5 9mm/.40, A-CUT Specs: Fits Make: Glock Fits Model: Gen 5 9mm/.40, A-CUT Front Blade Width: 0.115 in. (2.92mm) Front Blade Height: .240 in. (6.1mm) Rear Notch Shape: Square Rear Notch Width: .150 in. (3.81mm)