Windage loss is the reduction in efficiency due to windage forces. The pistol has a rear sight windage adjustment. The 1903A3 rear sight was an aperture sight adjustable both for elevation and windage. The rear sight is adjustable for windage and elevation. Very early guns feature rear sights adjustable for windage with opposing tension set screws. Others used a sliding blade sight with an adjustment for windage. The rear sight, mounted on the detachable handle, is adjustable for windage and elevation. The sights are adjustable in both windage and elevation in 1 MOA increments. The sights are adjustable for both elevation and windage. The rear sight of the pistol was an open notch adjustable for windage and elevation. Horizontal adjustments for windage were also provided. Both the front and rear sights on the RPD are adjustable for windage and elevation. Sights are fixed, although the rear sight is drift-adjustable for windage. The front sight was drift-adjustable for windage. The sights are fixed, with the rear sight being drift-adjustable for windage.