Firearm

Firearms – Breech loading – Grip magazine pistols

Reexamination Certificate

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Details

C042S071010, C042S075020

Reexamination Certificate

active

07971379

ABSTRACT:
A firearm including a barrel having a chamber and an integrally formed upper receiver having a passageway, an accessory rail extending the complete length of the upper receiver, and a guidance feature extending along the passageway. The firearm also includes an operating rod having an anti-bounce mechanism, a bolt that is rotated counter-clockwise to lock against the chamber, a bolt carrier having a safety extension disposed below the bolt that prevents a hammer from striking a firing pin until the bolt is locked against the chamber, a lower receiver, a recoil spring assembly, and a fire control group. The bolt includes a polymer spring that biases a sliding extractor against the base of a cartridge. The sliding extractor is disposed at an angle ranging from thirty degrees to fifteen degrees on the bolt face to provide a low ejection angle from the firearm.

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Picture of disassembled Stoner 63A Machine Gun Operating Rod (date unknown).
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“The Last Enfield, SA80—The Reluctant Rifle,” by Steve Raw. Published by Collector's Grade Publication, Copyright 2003.
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AK47 Bolt Bottom Side, ˜1947.
FNC Bolt Front View, ˜1979.
Barrett .50 Bolt Front View, ˜1989.
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Barrett M82.50 Cal Semi Auto Bolt & Carrier, ˜1989.
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Webpage, www.dpmsinc.com, advertising an Extractor Spring Asy/w Rub Tip, May 26, 2005, 1 page.
Webpage, www.ketmer.com, advertising the D-fender, May 26, 2005, 1 page.
3 photographs of the Daewoo 223 Rifle showing the attachment mechanism between the upper receiver and the lower receiver, ˜1981.

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