Firearm including improved hand guard
First Claim
1. A firearm comprising:
- a receiver defining a receiver bore extending along a longitudinal axis;
a bolt carrier disposed in said receiver bore and moveable relative to said receiver along said longitudinal axis between a firing position and a rearward position;
a barrel extending from said receiver along said longitudinal axis and defining a bore and a gas port in communication with said bore;
a hand guard attached to said receiver and extending from said receiver along said longitudinal axis about said barrel;
a piston assembly in fluid communication with said gas port of said barrel for receiving exhaust gas from said barrel;
a rod fixed relative to said bolt carrier and configured to be moved by said piston assembly for moving said bolt carrier between said firing position and said rearward position; and
a bushing fixed to said hand guard and slideably receiving said rod as said bolt carrier moves between said firing position and said rearward position.
1 Assignment
0 Petitions
Accused Products
Abstract
A firearm includes a receiver and a barrel connected to the receiver. A hand guard extends from the receiver and defines a hand guard bore. The receiver includes a threaded end and the hand guard includes a flange extending into the hand guard bore and abutting the receiver about the threaded end. A hand guard nut abuts the flange of the hand guard and threadedly engaging the threaded end of the receiver. The hand guard nut sandwiches the flange between the hand guard nut and the receiver for attaching the hand guard to the receiver. The hand guard includes a first hand guard portion and a second hand guard portion removably attached to the first hand guard portion. The second hand guard portion is slid from an assembled position to a disassembled position to expose the hand guard nut in the hand guard bore.
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Citations
23 Claims
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1. A firearm comprising:
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a receiver defining a receiver bore extending along a longitudinal axis; a bolt carrier disposed in said receiver bore and moveable relative to said receiver along said longitudinal axis between a firing position and a rearward position; a barrel extending from said receiver along said longitudinal axis and defining a bore and a gas port in communication with said bore; a hand guard attached to said receiver and extending from said receiver along said longitudinal axis about said barrel; a piston assembly in fluid communication with said gas port of said barrel for receiving exhaust gas from said barrel; a rod fixed relative to said bolt carrier and configured to be moved by said piston assembly for moving said bolt carrier between said firing position and said rearward position; and a bushing fixed to said hand guard and slideably receiving said rod as said bolt carrier moves between said firing position and said rearward position. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A firearm comprising:
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a receiver; a barrel extending from said receiver along a longitudinal axis and defining a bore and a gas port in communication with said bore; a first hand guard portion attached to said receiver and extending from said receiver along said longitudinal axis about said barrel; a second hand guard portion removably attached to said first hand guard portion with said second hand guard portion selectively moveable between an assembled position engaged with said first hand guard portion and a disassembled position; a piston assembly in fluid communication with said gas port of said barrel for receiving exhaust gas from said barrel; a body supporting said piston assembly and defining an orifice; and a mounting pin extending through said first hand guard portion and said orifice along a pin axis to attach said piston assembly to said first hand guard portion; said second hand guard portion intersecting said pin axis when said second hand guard portion is in said assembled position to prevent removal of said mounting pin from said orifice, said second hand guard portion being spaced from said pin axis when said second hand guard portion is in said disassembled position to permit removal of said mounting pin from said orifice. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A firearm comprising:
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a receiver defining a receiver bore extending along a longitudinal axis and including a threaded end; a hand guard defining a hand guard bore extending along said longitudinal axis; a barrel disposed within said hand guard bore abutting said threaded end; a hand guard nut engaging said hand guard and threadedly engaging said threaded end of said receiver for attaching said hand guard to said receiver, said hand guard nut defining internal threads; and a barrel nut engaging said barrel and defining external threads threadedly engaged with said internal threads of said hand guard nut for attaching said barrel to said receiver. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification