17 hmr or 22 magnum??

Discussion in 'AR-15 Discussion' started by aslowdodge, Jun 8, 2010.

  1. aslowdodge

    aslowdodge New Member

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    Is there anyone who sells uppers for 17 hmr or 22 magnum?? Are there any pluses or minuses to this size ammo if it is made for an AR?