Patent ID: 9239197
Filing Date: 2016-01-19
CPC Classification: F41A

Claim Text:
1. A composite ammunition magazine device configured to hold ammunition for a firearm, the device comprising: a) a box with sides and bottom, and an open top, and defining a longitudinal axis through the bottom and open top of the box, and having an interior sized and shaped to receive ammunition; b) a pair of opposite lips extending from opposite sides of the open top and over the open top of the box and having a narrower gap between distal free ends of the pair of lips with respect to a wider width of the box between the sides of the box; c) a follower slidably disposed in the box and having a path of travel substantially along the longitudinal axis; d) a spring disposed between the bottom and the follower and biasing the follower towards the open top; e) the box and the pair of lips comprising a composite material comprising fibers in a resin matrix; f) the sides of the box comprising more hoop fibers than the pair of lips in a hoop direction laterally around the box with respect to the longitudinal axis; and g) the pair of lips comprising more axial fibers than the sides of the box in an axial direction substantially along the longitudinal axis.