Recoil system and method for upper receiver

  • US 8,661,963 B2
  • Filed: 12/20/2011
  • Issued: 03/04/2014
  • Est. Priority Date: 02/11/2011
  • Status: Active Grant
First Claim
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1. A direct gas impingement modular rifle system comprising:

  • a lower receiver assembly;

    an upper receiver assembly containing a bolt carrier;

    a housing contained within the upper receiver assembly, the housing enclosing a recoil spring and a rod;

    wherein the housing is mounted on the bolt carrier, wherein a top face of the bolt carrier has integrated receptacle compartments, the integrated receptacle compartments allowing for the housing to rest upon the bolt carrier inside the upper receiver assembly; and

    wherein the housing contains;

    a counter bore shoulder against which the recoil spring rests; and

    a hole in the front of the housing through which the rod protrudes.

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