Introducing Derraco Engineering's game-changing 416 Stainless Picatinny rails! Available in both 0-MOA and 20-MOA options, our rails allow you to customize the elevation of your firearm for optimal performance. Be sure to specify your desired MOA when placing your order to ensure the correct rail is delivered to you. Crafted from stress-relieved 416 stainless steel, our Picatinny rails undergo a meticulous heat treatment process to eliminate internal stress, resulting in exceptional flatness and accuracy. To guarantee a durable and long-lasting sandblasted surface, we finish each rail with high-grade, fine grit ceramic beads. We take precision seriously. That's why each rail is precisely CNC-milled with high-grade milling centers, ensuring the highest quality and accuracy possible. Plus, our package includes five high-tensile 12.9 grade #6-48 screws (T15) to ensure a secure attachment to your firearm. For maximum performance, it's crucial to tighten screws with a torque wrench and set the torque to 2.8Nm or 25in/lbs. We also recommend using thread glue such as Locktite or super glue for added security and to prevent damage to your rifle action or shearing of screws. Extreme temperatures won't affect the stability of our stress-relieved Picatinny rails. Unlike non-stress-relieved materials that may warp or change shape in freezing winter or hot summer days, our stress-relieved steel is more stable and less likely to experience such issues. This means that our Picatinny rails are a reliable and consistent choice for any shooting situation, regardless of weather conditions. Don't settle for less. Choose Derraco Engineering for a Picatinny rail that is crafted with exceptional quality, precision, and stability in extreme temperatures. Our package includes one Picatinny rail and five high-tensile 12.9 grade #6-48 screws (T15), so order now to revolutionize your shooting game!