Abstract: An adjustable rear pistol sight has a sight base and a sight block. The sight block is secured in a recess in the sight base and has both windage and elevation adjustment capabilities. The sight base has a dovetail that will be receivable in a cooperatively shaped notch in a slide of a pistol with which the adjustable rear sight is intended for use. The sight has no sharp edges or surfaces and is essentially snag-free.

Abstract: A rugged, releasably attachable or interchangeable optical alignment system well suited for use as with pistol sights includes a sight body carrying a leaf spring locking member adapted to releasably engage a pistol's indentation. The sight body's leaf spring member is inserted into the pistol in a side opening transverse receiving notch with a pinned end of the leaf spring locking member sliding transversely over the pistol indentation's end wall open segment (at the side of the pistol). The user slides the sight base toward the bore's central axis to its fullest transverse extent, whereupon the leaf spring member's first end abuts the indentation's closed end wall. At this moment, the leaf spring locking member's free distal second end springs down and releasably engages and abuts the indentation's end wall, thus releasably locking the sight base to the pistol.

Abstract: This invention relates to hand-held light weapon firing devices. To resolve the present problem of the excessive length of the work travel of the firing device trigger, with large frictional surface resistance between the blocking iron and the track, thus directly affecting the precision of firing. It is characterized in that it has a rotating blocking iron, which is fixed to the firing mount by the rotating blocking iron shaft; the rotating blocking iron shaft, the rotating blocking iron shaft hole and the hole in the frame for the rotating blocking iron shaft together forming a rotating assembly. This converts the translational friction of the original blocking iron on the track into rotational friction, the linear translational motion of the original blocking iron becoming the eccentric rotational motion of the rotating blocking iron, reducing the length of travel of the trigger from 6.about.7 mm to 2.about.2.