Midwest Industries Rear Flip-Up AR Series 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"> A2 style dual aperture， fully protected from accidental damage </span></li><li><span class="a-list-item"> Thick rugged pivot ears， twice as thick as the competition </span></li><li><span class="a-list-item"> Hard coat anodized 6061 aluminum construction </span></li><li><span class="a-list-item"> Locking detent with double the locking surface， for maximum strength </span></li><li><span class="a-list-item"> Lock detent button with stepped down turns </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41V0vWW-l0L.jpg" noproxy>