Green Blob Outdoors (Dark Earth / Tan) Tactical Iron Flip up Front & Rear Sights, Rail Mount Gas Block 223, 5.56. FDE

FEATURES Folds down and stays flat when not in use Locking push button on side to prevent sights from flipping down Locked in place firmly with knurled nut Installs in seconds A2-style front post is adjustable for elevation with turns for 1.25" MOA at 100 yards Protective "ears" guard the post Fits onto picatinny and weaver style rails. Gas Block Front Sight clamps to a gas block with a Picatinny rail on top Made of heavy duty high quality aluminum alloy Aperture sizes in with easy adjustment Knurled aperture wheel turns easily in both directions