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Question on AR15 receivers

Discussion in 'Rifle Country' started by JHansenAK47, Mar 23, 2010.

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  1. JHansenAK47

    JHansenAK47 Member

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    I was looking at aimsurplus and saw this receiver.
    http://www.aimsurplus.com/product.aspx?item=F1STSL&groupid=6
    I don't what low shelf means so I thought would ask some of the more enlightened people here on THR.
    Just what does "Low Shelf for use with RDIAS" mean?
     
  2. sv51macross

    sv51macross Member

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    It means that the receiver has been machined with the possibility of installing a NFA-registered drop-in auto-sear. There are two methods of legally getting full-auto safely. There's buying a M-16/ect or buying a registered, pre-86 auto-sear that is designed to install in an AR-15 without having to drill a pin hole for it. (please correct me if I'm wrong). Add a safe/semi/auto trigger and a M-16 BCG, and you have a full-auto gun.

    In simple terms, the Spike's Tactical lowers have the option to add a $16,000 fun-switch without additional machining. Doesn't inherently impact operation or ownability, but just an open option.
     
  3. JHansenAK47

    JHansenAK47 Member

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