UTG Model 4 Low Profile Flip-up Front Sight for Handguard<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"> UTG new Gen ss flip up front sight， complete with 3mm Allen wrench to lock mounting deck onto Picatinny rail </span></li><li><span class="a-list-item"> Designed to Use on handguard or high profile gas Block in line with flat top upper receiver </span></li><li><span class="a-list-item"> Simple flip-up-to-aim design with plunger Posi-lock mechanism to MAINTAIN firm position; compress plunger to unlock and fold down for optics Use </span></li><li><span class="a-list-item"> Robust Posi-lock plunger coupled with spring Activated ball bearing and recessed sight base guarantees zero retention </span></li><li><span class="a-list-item"> Front sight post elevation adjustable w/Standard 4-prong tool， capable of Co-witnesses with Reflex/holographic sights and Mil-Spec rear sights </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31Zw4PgIPVL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41toPRqx4eL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41AjhsX-lkL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41G3CioGuFL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/519zSo2qBaL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51WEdv6H1gL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/81cjYbgJmSS.png" noproxy>