Ultradyne C4 Folding Rear Sight Blk

The C4 Rear Sight offers Rock-solid performance in a compact form with a ballistic ally calibrated elevation system that adjust in 50-yard increments from 200 to 600 yards. An integral part of the C4 Sight System" best paired with the C4 Folding Front Sight. The C4 REAR SIGHT is a high quality folding rear sight that was engineered with accuracy in mind.Features : Ultradyne exclusive alignment for accurate and immediate acquisition Positive detent allows operation without manipulation of buttons or latches Spare aperture conveniently threads into windage knob until needed