Firearm systems and methods

A firearm can have a bolt having a plurality of locking lugs that are configured to have a shear area that is larger than that of a standard M16/M4. A bolt carrier can have a bolt that has a double cut cam having an unlocking cam surface that has sufficient dwell increase to delay a start of unlocki...

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Bibliographic Details
Main Authors Sullivan Leroy James, Latulippe, Jr. Paul N, Waterfield Robert Lloyd, McGarry James
Format Patent
LanguageEnglish
Published 08.11.2016
Subjects
BLASTING
CYLINDERS
ENGINEERING ELEMENTS AND UNITS
FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS ANDORDNANCE, e.g. CANNONS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
MOUNTINGS FOR SMALLARMS OR ORDNANCE
PISTONS
SEALINGS
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:A firearm can have a bolt having a plurality of locking lugs that are configured to have a shear area that is larger than that of a standard M16/M4. A bolt carrier can have a bolt that has a double cut cam having an unlocking cam surface that has sufficient dwell increase to delay a start of unlocking when the bolt carrier is used in an M4 carbine. A stepped extractor pin may be provided that prevents disengagement of the extractor pin. A tube can be configured to provide gas from a barrel of the firearm to the piston via the carrier key. The tube can have a heat radiator formed from triangular shaped threads on at least a portion of the tube. A piston on the bolt can have a plurality of rings including pairs of mating rings that are formed and maintained as a matched pair.
Bibliography:Application Number: US201514720713