Abstract: A flex-plate adapter for a takedown firearm has front and rear sections. The rear section includes adjustment screws to change the gap between the front and rear sections. Guide pins are included for assuring proper alignment between the front and rear sections. The adjustable gap between the front and rear sections of the flex-plate adapter provides compensation for thread wear. A magazine cutoff provides a manual cutoff for retaining ammunition in the magazine whether the rifle is assembled or disassembled. A cutoff lock prevents the accidental movement of the magazine cutoff.

Abstract: A flex-plate adapter for a takedown firearm has front and rear sections. The rear section includes adjustment screws to change the gap between the front and rear sections. Guide pins are included for assuring proper alignment between the front and rear sections. The adjustable gap between the front and rear sections of the flex-plate adapter provides compensation for thread wear. A magazine cutoff provides a manual cutoff for retaining ammunition in the magazine whether the rifle is assembled or disassembled. A cutoff lock prevents the accidental movement of the magazine cutoff.

Abstract: A groove is provided on an upper surface of a handgun slide, wherein the groove is enclosed on one end and open at the rear end of the slide. The groove, beginning at a predetermined point along the top and extending rearward to the end of the slide, has a front face and a rear opening. A small cylinder of tritium activated phosphor is installed in the front face of the groove and is longitudinally parallel to the device so that the end of the cylinder is visible to a holder of the device. Additionally, a second small cylinder of tritium activated phosphor is installed just below the rear opening of the groove. The second cylinder is parallel to the bottom of the rear opening so that the length of the cylinder is visible to the holder. Sighting is accomplished by aligning the first cylinder end with the bottom of a target and aligning the second cylinder length with the bottom of the first cylinder end in the standard “six o'clock” sighting position.