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Posted: 5/20/2005 11:06:01 AM EDT

I know there are several claibers now in the AR15 style rifle including .308, 9mm, 10mm, 50, etc.? I am in the planning phaseof building my first ARs and have been toying with the idea of owning ARs with diffferent calibers. I have already bought several stripped lower receivers in anticipation of my builds. I plan on my first build to be 5.56mm. Which calibers can I build or buy as a completed upper that will fit on a standard lower receiver. Are there any with minimal modifications involved to the lower receiver? Is it just a matter of buying an upper receiver and barrel with a different caliber? Or are there specific caliber lowers receiver that I would need to get? Thanks for your help.
Link Posted: 5/20/2005 1:11:57 PM EDT
Link Posted: 5/20/2005 1:49:39 PM EDT
M4Madness......... Thanks for the link!
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