Vortex Defender Flip Cap Eyepiece (40-46mm)<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"> N/A </span></li><li><span class="a-list-item"> Made in USA </span></li><li><span class="a-list-item"> This cap will fit snugly on nearly all Vortex Optics and features a snap flat spring that will keep your line of sight unobstructed. </span></li><li><span class="a-list-item"> Features three stop positions. The first vertical， second at a 45 and the third at 90 to lay flat back. </span></li><li><span class="a-list-item"> Outside diameter: 40-46 mm | 1.57-1.81 inches. </span></li><li><span class="a-list-item"> Virtually indestructible made from rubber and super strong polymer. </span></li><li><span class="a-list-item"> WILL NOT FIT 1-inch tube Viper model VPR-M-01BDC， VPR-M-04BDC and VPR-M-03BDC. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41p4358l6yL.jpg" noproxy>