Cartridges and modifications for M16/AR15 rifle
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United States of America Patent
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Sep 1, 2015
Grant Date -
Aug 14, 2014
app pub date -
Jan 8, 2014
filing date -
Feb 14, 2008
priority date (Note) -
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Abstract
Embodiments of the present invention relate generally to cartridges and modifications for an M16/AR15 rifle. In one embodiment, a modified M16/AR15 rifle or carbine includes a bolt having a maximum outside diameter greater than that of a standard M16/AR15 bolt; and a bolt extractor pivoted to the bolt. The bolt and the bolt extractor are operable to: transport a cartridge from a magazine to a barrel, and eject a spent cartridge from the barrel. The rifle or carbine further includes a barrel extension configured to receive the bolt; a standard M16/AR15 upper receiver coupled to the barrel extension; a standard M16/AR15 lower receiver coupled to the upper receiver.
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