COMPACT SURVIVAL FIREARM

摘要

A compact survival firearm is a rifle having an upper receiver body, a lower receiver body removably connectable to the upper receiver body and defining a transverse bore adapted to closely receive a takedown pin, a fastener connected to the upper receiver body and having a protruding portion protruding therefrom, the lower receiver body defining a space sized to closely receive the fastener, the protruding portion of the fastener having an end portion of a first width, and an intermediate portion of a second width less than the first width, and the space at least partially intersecting the transverse bore such that the intermediate portion of the fastener is clear of the bore to permit the presence of the takedown pin, and the end portion of the fastener prevents separation of the upper receiver from the lower receiver when a takedown pin is present in the bore.

主权项

1. A rifle comprising:
an upper receiver body; a lower receiver body removably connectable to the upper receiver body and defining a transverse bore adapted to receive a takedown pin; a fastener threadedly connected to the upper receiver body and having a protruding portion protruding therefrom, such that the amount it protrude is adjustable by rotating the fastener; the lower receiver body defining a space sized to closely receive the fastener; the protruding portion of the fastener having an end portion of a first width, and an intermediate portion of a second width less than the first width; and the space at least partially intersecting the transverse bore such that the intermediate portion of the fastener is clear of the bore to permit the presence of the takedown pin, and the end portion of the fastener prevents separation of the upper receiver from the lower receiver when a takedown pin is present in the bore; and wherein the contact between the end portion of the fastener and the takedown in provides an adjustable tightness between the upper and tower receiver bodies based on the rotational position of the fastener.