Trinity Force Polymer Spring Loaded Flip Up Sights Front and Rear - $14.99 Trinity Force Polymer Spring Loaded Flip Up Sights - Front and Rear FEATURES: Weight, w/ hardware: 1.3 oz Height above rail, stowed: ~0.51 in Center of aperture to top of rail: 1.42 in Length, stowed: 2.6 in Length, deployed: