Made in America, Talley Manufacturings Fierce Rival Picatinny Rails are machined entirely from high grade 7000 series alloy and protected with a hard-coat anodizing to 65 Rockwell ensuring the craftsmanship of these Picatinny Rails last the lifetime of your firearm. The Fierce Rival Picatinny Rail is designed and manufactured with precision to fit your firearm with the industrys tightest manufacturing tolerances. These Pic 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.