Patent ID: 9297599
Filing Date: 2016-03-29
CPC Classification: B29K,B29L,F41A

Claim Text:
1. A lower receiver comprising: a main portion having a forward end for attaching to a barrel receiver, a rear end, and a molding area disposed between the forward end and the rear end; and a buffer tube mount disposed at the rear end of the main portion, the buffer tube mount comprising a ring extending up from the main portion and at least one protruding insert joint disposed inside the molding area, wherein: the main portion comprises a polymer material; the buffer tube mount comprises a high-strength material; the at least one protruding insert joint comprises a plurality of retaining features such that polymer material is over molded and injected into the molding area and flows into the plurality of retaining features to permanently hold the buffer tube mount in place with respect to the main portion; and the plurality of retaining features are disposed forward of the ring.