The DoubleStar flip-up front sight is a low profile locking front sight machined from aircraft aluminum. This front sight features a simple locking design that can be deployed rapidly with one hand. The top of the sight features a protective hood with a checkered texture to help with deployment. The front sight post is easily adjusted for elevation with an A2 tool or the tip of a bullet. The sight is secured to the railed gas block with a single cross-bolt. This sight is a gas block height front sight and will not work when mounted on the same plane as the rear sight.