TWO PIECE RAIL SYSTEM FOR FIREARM
First Claim
1. A handguard for a firearm, the firearm comprising a receiver and a barrel nut threaded onto the receiver, wherein the barrel nut comprises a barrel nut sprocket, and wherein the handguard comprises:
- a first half guard comprising a mounting rail, inner engagement, outer engagement, and a means for engaging the barrel nut sprocket wherein the first half guard is semi-cylindrical with the inner engagement and the outer engagement radially opposed to one another, wherein the outer engagement comprises at least one open hole, and wherein the inner engagement comprises at least one threaded hole;
a second half guard identical to the first half guard; and
a plurality of threaded fasteners that pass through the open holes and thread into the threaded holes to thereby attach the first half guard and the second half guard together in a radially opposed arrangement and wherein the threaded fasteners are tightened to thereby clamp the means for engaging the barrel nut sprocket onto the barrel nut sprocket.
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Accused Products
Abstract
A firearm handguard having two identical halves, or half guards, can engage the barrel nut of certain firearms to thereby provide a mounting rail system. The barrel nut attaches the barrel to the receiver. The half guards can be separately positioned in engagement with the barrel nut before fastening them together. The fastening operation can cause the half guards to clamp onto the barrel nut. Alternatively, the front handguard cup of some firearms can prevent the handguard from slipping forward while the rear barrel nut engagement prevents handguard rotation. Free floating variants, however, must clamp onto the barrel nut.
85 Citations
20 Claims
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1. A handguard for a firearm, the firearm comprising a receiver and a barrel nut threaded onto the receiver, wherein the barrel nut comprises a barrel nut sprocket, and wherein the handguard comprises:
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a first half guard comprising a mounting rail, inner engagement, outer engagement, and a means for engaging the barrel nut sprocket wherein the first half guard is semi-cylindrical with the inner engagement and the outer engagement radially opposed to one another, wherein the outer engagement comprises at least one open hole, and wherein the inner engagement comprises at least one threaded hole; a second half guard identical to the first half guard; and a plurality of threaded fasteners that pass through the open holes and thread into the threaded holes to thereby attach the first half guard and the second half guard together in a radially opposed arrangement and wherein the threaded fasteners are tightened to thereby clamp the means for engaging the barrel nut sprocket onto the barrel nut sprocket. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A handguard for a firearm, the firearm comprising a receiver and a barrel nut threaded onto the receiver, wherein the barrel nut comprises a barrel nut sprocket, and wherein the handguard comprises:
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a first half guard comprising a mounting rail, inner engagement, outer engagement, and a means for engaging the barrel nut sprocket wherein the first half guard is semi-cylindrical with the inner engagement and the outer engagement radially opposed to one another, wherein the outer engagement comprises at least one open hole, and wherein the inner engagement comprises at least one threaded hole; a second half guard identical to the first half guard; a plurality of threaded fasteners that pass through the open holes and thread into the threaded holes to thereby attach the first half guard and the second half guard together in a radially opposed arrangement; and at least one clamping fastener passing through the means for engaging the barrel nut sprocket wherein the means for engaging the barrel nut sprocket clamp onto the barrel nut sprocket when the clamping fastener is tightened and to thereby attach the handguard to the receiver as a free floating handguard. - View Dependent Claims (8, 9, 10)
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11. A handguard for a firearm, the firearm comprising a receiver and a barrel nut threaded onto the receiver, wherein the barrel nut comprises a barrel nut sprocket, and wherein the handguard comprises:
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a first half guard comprising a mounting rail, inner engagement, outer engagement, and a means for engaging the barrel nut sprocket wherein the first half guard is semi-cylindrical with the inner engagement and the outer engagement radially opposed to one another, wherein the outer engagement comprises at least one open hole, and wherein the inner engagement comprises at least one threaded hole; a second half guard identical to the first half guard; and a plurality of threaded fasteners that pass through the open holes and thread into the threaded holes to thereby attach the first half guard and the second half guard together in a radially opposed arrangement. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification