Foldable Fiber Optic Nylon Sights Flip Up Front and Back Sights Fiber Sights Back Up Sight Fit Picatinny Weaver Rails <p data-spm-anchor-id="a261y.25179003.module-desc.i1.169a829c2L4sfW"><span data-spm-anchor-id="a261y.25179003.module-desc.i2.169a829c2L4sfW">Specifications：&nbsp;</span><br />Color:Black&nbsp;<br />Material:Nylon&nbsp;<br />Interface:Picatinny / Weaver Rails&nbsp;<br /><br />Feature:&nbsp;<br />1.the front view of the visible red fiber and the back view of the green fiber provide the brightest viewing point.&nbsp;<br />2.folding thumb sliding mechanism, sliding spring loaded button can flip.&nbsp;<br />3.the spring fold up view is easily activated by pulling the rear cover and can be folded by pressing down.&nbsp;<br />4.compatible with most Picatinny / Weaver orbits.&nbsp;<br />5.not applicable to natural gas blocks with tracks.&nbsp;<br />6.impact resistant polymer construction provides lightweight durability.&nbsp;<br />7.Please pull out the screw before installation, Then snap the screw into the groove of the guide rail.&nbsp;<br /><br />Package Contains:&nbsp;<br />1 x Front Nylon Sight&nbsp;<br />1 x Rear Nylon Sight&nbsp;</p> <p>1 x Allen Wrench</p>