Elzetta ZSM-T Flashlight Mount for Tactical Shotgun， Remington 870， Mossberg 500， Quick Release Thumbscrew Model<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"> Fits Remington 870， Mossberg 500 and 590， Benelli M4 and Others </span></li><li><span class="a-list-item"> Requires 1.75 Inches of Free Space on the Magazine Tube and Barrel </span></li><li><span class="a-list-item"> Sizing Adapters Accommodate Flashlights From 0.70" to 1.05" in Diameter </span></li><li><span class="a-list-item"> Quick Release Thumbscrew Allows Rapid Installation and Removal of Flashlight </span></li><li><span class="a-list-item"> Attaches to Either Side of Shotgun </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41CItwJlMSL.jpg" noproxy>