carbine gas on a pistol

  1. American_Fusilier

    AR-15 pistol buffer/spring questions, and other AR gas issue question

    Hey guys, So I've already built a very reliable AR-15. Well, I built the lower and bought a complete upper (all from PSA). Now I am building an AR-15 pistol lower (it'll be in 5.56 to start), and I'll be buying a complete upper from PSA in a few months time when I can afford it. I am building...
    • American_Fusilier
    • Thread
    • 10 inch pistol barrel 556 ar pistol ar-15 buffer buffer tube buffer weight carbine gas on a pistol gas system undergassed
    • Replies: 8
    • Forum: Rifle Country
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