Firearm having an indirect gas impingement system
First Claim
1. A firearm comprising:
- a barrel defining a first bore extending along a longitudinal axis and having a breech and a muzzle defining a length of said barrel;
a hand guard defining a second bore extending substantially parallel to said longitudinal axis and having a first end coupled to said breech and a second end spaced from said first end along said longitudinal axis toward said muzzle;
a front sight supported entirely by said hand guard;
a housing coupled to said front sight; and
a support at least partially disposed between said front sight and said hand guard with said support being at least partially complementary in configuration with a portion of said housing for supporting said housing and said front sight relative to said hand guard when said hand guard is disposed over said barrel and for allowing removal of said housing when at least a portion of said hand guard is removed from said barrel;
wherein said housing defines a chamber extending along a piston axis with a piston disposed within said chamber and movable along said piston axis between a static position and a displaced position, with said front sight, said housing and said piston removable as a unit for selectively detaching said unit from said hand guard.
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Accused Products
Abstract
A firearm including a barrel having a breech and a muzzle defining a length of the barrel is disclosed. The firearm includes a hand guard having a first end and a second end with a front sight is attached to at least one of the barrel adjacent the muzzle and the second end of the hand guard. A housing is coupled to the front sight and defines a chamber having a piston disposed therein and movable between static and displaced positions. A receiver is coupled to the first end and a bolt carrier is disposed within the receiver and moveable between firing and rearward positions. A carrier key is attached to the bolt carrier and moves concurrently with the bolt carrier and a rod is permanently affixed to the carrier key and extends to a distal end with the piston engaging the distal end when moving to the displaced position.
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Citations
11 Claims
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1. A firearm comprising:
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a barrel defining a first bore extending along a longitudinal axis and having a breech and a muzzle defining a length of said barrel; a hand guard defining a second bore extending substantially parallel to said longitudinal axis and having a first end coupled to said breech and a second end spaced from said first end along said longitudinal axis toward said muzzle; a front sight supported entirely by said hand guard; a housing coupled to said front sight; and a support at least partially disposed between said front sight and said hand guard with said support being at least partially complementary in configuration with a portion of said housing for supporting said housing and said front sight relative to said hand guard when said hand guard is disposed over said barrel and for allowing removal of said housing when at least a portion of said hand guard is removed from said barrel; wherein said housing defines a chamber extending along a piston axis with a piston disposed within said chamber and movable along said piston axis between a static position and a displaced position, with said front sight, said housing and said piston removable as a unit for selectively detaching said unit from said hand guard. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification