Talley Micro Dot 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 firearms. The Stoeger M3500 Micro Dot Picatinny Rails are all designed and manufactured with precision to fit shotguns with the industry's tightest manufacturing tolerances. These Micro Dot Pic Rails provide a mounting platform for all Micro Red Dot optics mounts that have been designed in accordance with the MIL-STD-1913 Pic Rail specifications.