HIVIZ Model 300 Two-In-One Magnetic Base Rib Shotgun Sight<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"> Hi-Viz Two in One sight </span></li><li><span class="a-list-item"> Fits 7/32" to 21/64" size vent ribs </span></li><li><span class="a-list-item"> Fits narrow vent ribs </span></li><li><span class="a-list-item"> Shoot better with better sights </span></li><li><span class="a-list-item"> Easy to install with magnets </span></li><li><span class="a-list-item"> Magnetic base sight </span></li><li><span class="a-list-item"> Includes two LitePipes (orange and green round， orange and green triangle) </span></li></ul><!--   Loading EDP related metadata  --><div aria-live="polite" class="a-row a-expander-container a-expander-inline-container"><div aria-expanded="false" class="a-expander-content a-expander-extend-content" style="display: none;"><ul class="a-unordered-list a-vertical a-spacing-none"><li><span class="a-list-item">Fits ribs from .218" to .328" (7/32" - 21/64"; 5.5mm - 8.3mm)</span></li><li><span class="a-list-item">Model TO300</span></li><li><span class="a-list-item">1 Year manufacturers warranty</span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41S2f9dq6eL.jpg" noproxy></div></div>