Many shooters feel the standard AR15 removable front sights are cumbersome to use, too easily misplaced, and distracting when optical sights are deployed. The GG&G Flip Up Front Sight For Dovetailed Gas Blocks is easy to install, simple to deploy, weighs in at only 3.2 ounces and includes a mechanical locking detent system. It can easily be installed by the operator onto the AR-15 dovetailed gas block with only an allen wrench, which is included. Once installed, the gas block sight can remain in place, as it can be raised or lowered instantly. Protective ears are provided for the sight with gripping serrations to more easily raise and lower the sight assembly in combat environments. With the mechanical locking detent, the front sight cannot be accidentally lowered. To lower the sight the operator only has to push a button. When in the upright position it provides the same command height as the original AR15 or M16 front sight and can be co-witnessed with red dot optics. To ensure flexibility, we use standard military sight components in this combat ready sight. The GG&G Flip Up Front Sight For Dovetailed Gas Blocks is manufactured from solid 4140 billet chrome moly steel and is bead blasted and manganese phosphated to provide a non-reflective, corrosion resistant matte black finish meeting mil-spec requirements. All edges have been dehorned to protect the shooter, making this AR15 rail mount front sight one of the most popular among shooters in civilian, police, and military circles. An optional Trijicon tritium front sight post can also be added to enhance low light shooting capability. The tritium front sight option is the perfect accessory for police and tactical users who may be moving in and out of darkness in real time. If purchased with the Flip Up Front Sight For Dovetails, we will install the Trijicon tritium sight post for free.