Their sight posts are precision machined from billet 416 Stainless Steel for an outstanding sight picture and precise fit in any AR-15 front sight housing including standard A2 fixed front sights and popular brands like Troy, Diamondhead, Samson, MI, YHM, Daniel Defense and Magpul polymer MBUS Gen 2. Fits any sight that accepts a standard A2 front sight post. Has a black oxide matte finish. The contrast stripe is a multi-layer paint application into a machined grove. Simple Drop-In installation. Simply unscrew the factory sight post and screw in the Blitzkrieg Components sight post using either our sight tool or a standard A2 sight tool.