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...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Waterfield, Robert Lloyd, Latulippe, Paul N, Sullivan, Leroy James, McGarry, James
Format:	Patent
Sprache:	eng
Schlagworte:	AIMING 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 WEAPON SIGHTS WEAPONS
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Beschreibung
Zusammenfassung:	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 and can have a plurality of rings including pairs of mating rings that are formed and maintained as a matched pair.