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Posted: 11/14/2012 2:07:10 PM EDT
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I have a Bushmaster ORC 90888 AR15 and would like to remove the factory gas block and replace it with a YHM gas block with front sight. My question is how do I remove the gas block? It does not have the regular roll pins where I can take a punch to it and pound it out. Please help and let me know what tools are needed and what is involved. Below is a pic of what the pins looks like and it is the same on the other side.
http://i1320.photobucket.com/albums/u524/ccheung119/GasBlockPins.jpg |
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