9mm AR Build

cbxjeff

October 15, 2009 13:53

I have a dedicated 9mm upper that I want to install on a std. AR lower. I am told that I need a mil spec buffer tube, 9mm buffer, & 9mm buffer spring. I'm haveing a little truble finding the parts. Mil spec tubes seem to be much more scarce that commercial ones. Can someone suggest a vendor? Have I missed any required parts on this build?

Thanks guys,

0

• 

  BHAVIN

  October 15, 2009 14:18

  www.brownells.com
  
  They should have all the parts in stock.

  0
• 

  Nwcid

  October 15, 2009 22:05

  You just need a heavier buffer. You dont need a different tube or spring. Just make sure the spring you have is the right length for the tube you are using.
  
  The recoil on the 9mm is a lot different. Since it is a blow back it needs more weight.
  
  Now if I could just remember how heavy...........
  
  
  Some of the builds require a different hammer. I believe the difference is the width of the hammer. I have an OA and they were made to run with standard hammers. You can still run your .223 with the 9mm hammer.

  0

Please sign in to leave a comment.