DD A1-5 Fixed Rear Sight

One piece design makes it easy to install to any Military Specification flattop upper receiver and the sight is secured to the upper using a slotted fastener which is threaded into a self locking steel thread insert. A1 sight adjustment. A2 aperature. Aircraft Grade 6061-T6 aluminum. Military Specification Type III Hard Coat Anodized. Weight 1.7 ounces. Made in the USA.