Dagger Defense tactical flip up BUIS picatinny rail mounted backup iron sights.<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"> Tactical picatinny rail mounted BUIS </span></li><li><span class="a-list-item"> Aluminum alloy in black matte finish </span></li><li><span class="a-list-item"> Spring loaded flip up feature </span></li><li><span class="a-list-item"> Great back up iron sights for red dots </span></li><li><span class="a-list-item"> Fits most standard picatinney rail systems </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/4106GCTn3DL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41%2B8ypQq71L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41gCP0ptXoL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41gRyAKxOML.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41RMj2f1uTL.jpg" noproxy>