Firearm silencer and flash attenuator

  • US 5,136,923 A
  • Filed: 07/08/1991
  • Issued: 08/11/1992
  • Est. Priority Date: 07/30/1982
  • Status: Expired due to Term
First Claim
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1. A sound suppressor for mounting on a firearm wherein the suppressor consists essentially of:

  • a) an outer housing;

    b) an interior hollow tube located within said outer housing at least substantially the length of the housing which is to be located forward of the muzzle of a firearm to which the suppressor is to be attached, wherein said tube is for receiving a projectile discharged from the firing chamber of said firearm, said tube being perforated with a plurality of ports, the minimum diameter of ports being at least about 50% of the inside diameter of said interior tube, and the minimum thickness of the wall of said tube being at least about 1/8 inch, and wherein said interior hollow tube has a bore larger than the bore of the muzzle of a firearm to which the suppressor is to be attached to thereby provide clearance for said projectile;

    c) spacing between said housing and said tube; and

    d) packing material located within said spacing; and

    wherein said spacing is divided into two chambers by a radially extending partition located about midpoint of the length of the suppressor which is to be forward of the muzzle of the firearm and wherein packing is present in only the chamber closest to the muzzle of the firearm to which the suppressor is to be attached.

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