Heckler Koch Experts

nyforester

March 22, 2009 14:22

Where do these go ?
I've never seen one on my USP
http://www.gunbroker.com/Auction/ViewItem.asp?Item=125189218

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  Pearyw

  March 22, 2009 14:45

  They go around the end of the barrel on the models that use them. A standard USP doesn't have them.

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  cpermd

  March 22, 2009 15:35

  They are o rings to go on threaded barrels for a suppressor.
  
  CP

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