Bolt assembly for a firearm
OwnerGerald J. Doironinventor
Life of this patent
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Abstract
A method of assembling a firearm is provided. The method includes providing a bolt assembly that includes a bolt carrier that includes a cammed slot and a first passage, a bolt member slidably coupled to the bolt carrier and positioned within the first passage, the bolt member includes at least one aperture and a second passage, a piston member slidably coupled to the bolt member and positioned within the second passage, the piston member includes an elongated slot and a third passage, wherein the elongated slot includes a first length, and a cam pin slidably coupled to at least one of the bolt carrier, the bolt member and the piston member, the cam pin includes a fourth passage; and coupling the bolt assembly within a cavity of the firearm such that the bolt assembly is slidably coupled to an upper receiver of the firearm.
Claims20
A method of assembling a firearm, said method comprising:
- providing a bolt assembly that includes a bolt carrier that includes a cammed slot and a first passage, a bolt member slidably coupled to the bolt carrier and positioned within the first passage, the bolt member includes at least one aperture and a second passage, a piston member slidably coupled to the bolt member and positioned within the second passage, the piston member includes an elongated slot and a third passage, wherein the elongated slot includes a first length, and a cam pin slidably coupled to at least one of the bolt carrier, the bolt member and the piston member, the cam pin includes a fourth passage;
- and
- coupling the bolt assembly within a cavity of the firearm such that the bolt assembly is slidably coupled to an upper receiver of the firearm.
A bolt assembly comprising:
- a bolt carrier that comprises a cammed slot and a first passage;
- a bolt member slidably coupled to said bolt carrier and positioned within said first passage, said bolt member comprises at least one aperture and a second passage;
- a piston member slidably coupled to said bolt member and positioned within said second passage, said piston member comprises a third passage and an elongated slot that comprises a first length;
- and
- a cam pin slidably coupled to at least one of said bolt carrier, said bolt member and said piston member, said cam pin comprising a fourth passage.
A firearm comprising:
- an upper receiver comprising a cavity defined therein;
- a barrel coupled to said upper receiver;
- a lower receiver coupled to said upper receiver;
- and
- a bolt assembly slidably coupled to upper receiver and positioned within said cavity, said bolt assembly comprising:
- a bolt carrier that comprises a cammed slot and a first passage;
- a bolt member slidably coupled to said bolt carrier and positioned within said first passage, said bolt member comprises at least one aperture and a second passage;
- a piston member slidably coupled to said bolt member and positioned within said second passage, said piston member comprises a third passage and an elongated slot that comprises a first length;
- and
- a cam pin slidably coupled to at least one of said bolt carrier, said bolt member and said piston member, said cam pin comprising a fourth passage.
Dependencies are inferred from the claim text.