Mossberg 500/590 Series Shotgun Picatinny Rail Mount<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Picatinny rail mount for Mossberg 500 and 590 Series and equivalent shotguns </span></li><li><span class="a-list-item"> Allows for the mounting of Picatinny or Weaver standard scopes， red dots， magnifiers， or other optics </span></li><li><span class="a-list-item"> Installs via included set screws into the Mossberg factory mounting holes </span></li><li><span class="a-list-item"> Crafted from lightweight aluminum， 5.4 inches in length and 1.4 ounces in weight </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41D4cAN8EBL.jpg" noproxy>