They were installed for about 15 minutes but never used other then the installation.
Basically they are still new.
Ship in original box's.
Daniel Defense NEW Fixed BACK-UP Sights are 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. Machined from 6061 aircraft grade aluminum and Military Specification Hard Coat Anodized The Daniel Defense Fixed Back Up Iron Sights are both lightweight and durable. Rear sight uses an A-2 Aperture and slim A-1 sight adjustment that does not impede the use of the charging handle on M4 type rifles and weight only 1.7 OZ
The Front Sight light weight, streamlined and virtually snag-free. Special attention was paid to facilitate the use of compact weapon-lights forward of the sight, such as the X300, TLR-1, etc. The concave radius on either side of the sight is a great place to rest your thumb for easy. Weights only 1.1 OZ Made in the United States of America.
The one piece design makes it easy to install on any MIL-STD-1913 rail and it secures with a slotted fastener threaded into a self-locking stainless steel thread insert. Special attention was paid to facilitate the use of compact weapon-lights forward of the sight, such as the X300, TLR-1, etc. The concave radius on either side of the sight is a great place to rest your thumb for easy, ambidextrous activation of the light.
Machined from 6061-T6 aluminum and military specification hard anodized, our Rail-Mount Fixed Front Sight is both lightweight and durable.
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