Patent ID: 9103625
Filing Date: 2015-08-11
Classification: F41C,F41G

Abstract:
1. A firearm rail mounting facility for connecting an accessory to a forward portion of a firearm, the facility comprising: a firearm forend barrel shroud element having an exterior surface operable for gripping by a user and an interior surface defining a barrel passage; the firearm forend barrel shroud element defining a plurality of rail mounting apertures extending from the interior surface to the exterior surface; each of the apertures having a first portion with a first diameter to closely receive a conical fastener head of a second diameter; each of the apertures having a second portion with a second width less than the first diameter sized to receive a shank portion of a fastener; each of the apertures having a chamfered recess on the interior surface sized to receive the conical fastener head, the chamfered recess positioned at the second portion.