Talley Manufacturing's 1913 Picatinny Rails are machined entirely from alloy and protected with a hard-coat anodizing to 65 Rockwell ensuring these Picatinny Rails last for the lifetime of your firearm. The Picatinny Rails provide a mounting platform for all optics mounts that have been designed in accordance with the MIL-STD-1913 Pic Rail specifications, to include all Talley Picatinny scope mounts.