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Muzzle brake

  • US 4,207,799 A
  • Filed: 10/10/1978
  • Issued: 06/17/1980
  • Est. Priority Date: 02/14/1977
  • Status: Expired due to Term
First Claim
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1. A muzzle brake for use on an associated gun having gun body means, a gun barrel with a bore formed in said barrel and a gun slide surrounding said barrel and axially movable relative to said barrel, said muzzle brake comprising:

  • a tubular cylindrical body member having an internal passage, said internal passage having one end portion and an opposite end portion with a shoulder portion therebetween, said one end portion and said opposite end portion of said internal passage having an internal diameter of substantially constant diametral dimension and being slightly greater than the diameter of said barrel, said shoulder portion having an internal diameter slightly greater than the diameter of said barrel;

    securing means for detachably securing said tubular cylindrical body member to said gun slide as to place said tubular cylindrical body member in substantial axial alignment with said barrel bore, said cylindrical body member when detachably secured to said slide having said one end portion received within said slide as to be axially movable therewith and as to have said opposite end portion projecting outwardly of said slide in substantial axial alignment with said barrel bore;

    abutment means carried generally externally of and by said cylindrical body member, said abutment means being effective to operatively engage an end of said slide as to limit the axial extent to which said one end portion is received by said slide when said cylindrical body member is detachably secured to said slide;

    said shoulder portion having bearing surface means axially interposed said one and said opposite end portion, said bearing surface means slidably receiving said barrel therein when said cylindrical body is detachably secured to said slide; and

    venting aperture means formed through the wall of said tubular cylindrical body member, said aperture means comprising an elongated slot having one end and a longitudinal axis substantially parallel to the axis of said tubular cylindrical body, said elongated slot being located ahead of the forward end of said barrel such that said barrel end is interposed said shoulder portion of the internal passage and said one end of the elongated slot, said elongated slot further being upwardly disposed and further having said longitudinal axis generally contained within a vertical plane passing through said axis of the barrel when said gun is held in a generally horizontal firing position, such that when said gun is fired, the gasses generated during the ignition of a related bullet assembly may freely escape the end of said barrel, unrestricted by the structural relationship established between said barrel and said opposite end portion of said tubular cylindrical body member toward said elongated slot and pass therethrough in a generally upwardly direction thereby creating generally downwardly directed reaction forces assisting in maintaining the fired firearm stable to at least significantly minimize the full upward kick of the fired firearm.

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