Patent attributes
A wear surface assembly configured for use in a firearm receiver is disclosed. The disclosed assembly may include one or more wear surface members configured to be disposed within a receiver such that they physically intervene between the internal sidewalls of the receiver and either (or both) of the bolt carrier and cam pin head. In this manner, the disclosed assembly may serve to concentrate on itself any friction from the bolt carrier and cam pin head which otherwise would produce unwanted wear on the interior sidewalls of the receiver. The disclosed assembly may be configured to provide coverage of the receiver walls for the bolt carrier and cam pin head along the full (or at least partial) length of travel of the bolt carrier. The disclosed assembly further may include one or more retention pins configured to prevent the wear surface member(s) from dislodging from the receiver.
