Samson manual flip up sight bases are constructed from aluminum, have stainless steel clamps, and are hard coat anodized. With milspec dimensions, the sights lock into position and attach to any 1913 Picatinny rail. Functional Lightweight Design - At 3.05oz, the set adds minimal weight to your setup while maximizing utility Front sight features XS Tritium Stripe front: 0.105" wide front post with vertical tritium stripe and white painted outline f