Diamondhead VRS Long Rail (Single) (M4/AR15/M16)<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 all M4/AR15/M16 variants </span></li><li><span class="a-list-item"> Rail &amp; Bumper Kits include hex screws &amp; Allen key </span></li><li><span class="a-list-item"> Mil. Spec. Type III anodized 6061  T6 aluminum construction &amp; Mil. Std. 1913 Picatinny rail dimensions </span></li><li><span class="a-list-item"> Mix full length &amp; short rails with bumpers; Add more rails as additional accessories are needed </span></li><li><span class="a-list-item"> Fast configuration changes; Combat durable </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31yPIwOrKhL.jpg" noproxy>