sbr upper

  1. 2

    Would like to build a 9mm version of sig Rattler

    Good morning all, I would like to build/buy a 9mm SBR similar to the the Sig Rattler SBR, is this possible? if so will you please provide me where to look for an upper. I am new to this build idea however, I have believe I would need a piston upper, is this correct? if so does it exist? where...
  2. adcoch1

    best 22lr upper for the AR?

    Hello all, I am contemplating a 22lr upper for the ar15, and I would love some user experience with them! I may be building this for an SBR, so probably a 12" to 16" max, maybe shorter, who knows. But minimum I would like great function and high quality mags, so where do I look?
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