The PM238 front sight base and body molded from a glass-filled, Zytel-based, proprietary black polymer material, designed to be mounted on M1913 Picatinny rails. The sight is mounted to the rail via a locking bar and secured with a cross slotted, knurled thumb screw. The sight features HK style curved protective ears. The flip sight folds up and towards the shooter to deploy. When in the up position the sight is locked in place via a spring loaded plunger. To fold the sight to the down position, depress the plunger and fold forward. Elevation-zero is accomplished as with any GI-style front sight, in 1.25-moa increments (+/-). No permanent modification required. All hardware included. This sight may be paired with model PM136, PM137, PM200 rear sights mounted to AR-15 / M16 flat top A3 upper receiver rifles and carbines.