An embodiment presents a rifle including an upper receiver, a barrel assembly connected to the upper receiver and a forend with an integrated barrel nut. The integrated barrel nut is connected to the barrel assembly such that the forend is directly connected to and aligned with the upper receiver. A
An embodiment presents a rifle including an upper receiver, a barrel assembly connected to the upper receiver and a forend with an integrated barrel nut. The integrated barrel nut is connected to the barrel assembly such that the forend is directly connected to and aligned with the upper receiver. Another embodiment provides a method for assembling a firearm. The method includes inserting a barrel assembly into an upper receiver. The method also includes threading a forend with an integrated barrel nut over the outer surface of the barrel assembly. The method also includes checking an alignment between the upper receiver and the forend.
대표청구항▼
1. A rifle comprising: an upper receiver;a barrel assembly connected to the upper receiver; anda forend with an integrated barrel nut forming a single unitary structure for attachment to said barrel assemblysuch that the forend is directly connected to and aligned with the upper receiver. 2. The rif
1. A rifle comprising: an upper receiver;a barrel assembly connected to the upper receiver; anda forend with an integrated barrel nut forming a single unitary structure for attachment to said barrel assemblysuch that the forend is directly connected to and aligned with the upper receiver. 2. The rifle of claim 1, wherein said forend is aligned with the upper receiver and wherein said forend and said upper receiver are configured to achieve a predetermined torque value based on a shim of a selective width positioned between the barrel assembly and the integrated barrel nut. 3. The rifle of claim 1, wherein said forend is aligned with the upper receiver, wherein said forend includes inner threads, and said upper receiver includes outer threads such that the inner threads of the forend engage the outer threads of the upper receiver to achieve a predetermined torque value between the barrel assembly and the integrated barrel nut. 4. The rifle of claim 2, wherein said shim is positioned over an outer surface of the barrel assembly; wherein said integrated barrel nut includes a mating shoulder along an inner surface of the integrated barrel nut; and wherein said forend is aligned with the upper receiver based on direct contact between the shim and the mating shoulder. 5. The rifle of claim 1, wherein said integrated barrel nut includes a mating shoulder, wherein said barrel assembly includes a shoulder, and wherein said forend is aligned with the upper receiver based on a rear surface of the mating shoulder seated against a front surface of the shoulder. 6. The rifle of claim 1, wherein said forend is aligned with the upper receiver based on an upper rail on a top surface of the upper receiver being aligned with an upper rail positioned on a top surface of the forend. 7. The rifle of claim 6, wherein said forend is configured to mount an accessory along one of a side or a bottom region of the barrel assembly. 8. The rifle of claim 7, wherein the accessory is a grenade launcher mounted along the bottom region of the barrel assembly. 9. The rifle of claim 1, wherein said barrel assembly is connected to the upper receiver based on an indexed pin of the barrel assembly having extended into a notch along an inner surface of the upper receiver upon said barrel assembly and said upper receiver having a predetermined relative rotational alignment. 10. The rifle of claim 1, wherein the integrated barrel nut includes inner threads along an inner surface, wherein the upper receiver includes outer threads along an outer surface, and wherein the said integrated barrel nut is connected to the upper receiver based on the inner threads engagement with the outer threads. 11. A forend with an integrated barrel nut, to form a shale unitary structure, for a firearm, said firearm comprising the forend, an upper receiver and a barrel assembly, said forend comprising: a mating shoulder along an inner surface of the integrated barrel nut, said mating shoulder coupled to an outer surface of the barrel assembly;wherein said forend is configured to align with the upper receiver based on a rear surface of the mating shoulder being seated against a front surface of a shoulder of the barrel assembly; andwherein the forend is configured to align with the upper receiver based on the integrated barrel nut being coupled to the barrel assembly. 12. The forend of claim 11, further comprising a shim positioned over the outer surface of the barrel assembly, wherein the mating shoulder is configured to make direct contact with the shim and wherein the forend is configured to align with the upper receiver based on the direct contact between the integrated barrel nut and the barrel assembly. 13. The forend of claim 11, said forend further comprising an upper rail positioned on a top surface of the forend; wherein said forend is configured to align with the upper receiver based on an upper rail on a top surface of the upper receiver configured to align with the upper rail positioned on the top surface of the forend. 14. A method for assembling a firearm comprising: inserting a barrel assembly of the firearm into an upper receiver of the firearm;threading a forend with an integrated barrel nut, to form a single unitary piece, over the outer surface of the barrel assembly; andchecking an alignment at a predetermined torque value between the upper receiver and the forend. 15. The method of claim 14, further comprising: positioning a first shim with a first width over an outer surface of the barrel assembly; andreplacing the first shim with a second shim having a second width different than the first width, if the upper receiver and the forend are not aligned at the predetermined torque value. 16. The method of claim 14, further comprising rotating the barrel assembly within the upper receiver and fixing the barrel assembly and the upper receiver at a predetermined relative rotational alignment. 17. The method of claim 14, further comprising providing an upper rail along a top surface of the upper receiver and providing an upper rail along a top surface of the forend, wherein said checking the alignment includes checking the alignment between the upper rail on the top surface of the upper receiver with the upper rail on the top surface of the forend. 18. A firearm having a barrel assembly, comprising: a forend;a barrel nut machined into the forend to form a single unitary structure; anda mating shoulder along an inner surface of the barrel nut, said mating shoulder coupled to an outer surface of the barrel assembly. 19. The firearm of claim 18, further comprising an upper receiver and a barrel assembly wherein said forend aligns with the upper receiver based on a rear surface of the mating shoulder being seated against a front surface of a shoulder of the barrel assembly. 20. The firearm of claim 19, further comprising an upper receiver and a barrel assembly wherein the forend aligns with the upper receiver based on the barrel nut being coupled to the barrel assembly.
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이 특허에 인용된 특허 (6)
Koon Homer, Barrel extender with recoil reduction.
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