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Posted: 2/7/2012 11:00:41 AM EDT
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I was originally planning to build a .308 compatible AR-15 with the plans to be able to swap out uppers between .308 and .223/5.56. Since then, I've read that an AR-10 type lower would be required for the .308.
I'm all about multi-purposing, so with that said, what calibers COULD I use in an AR-15? Also, what in the world is the difference between all the lowers that different companies have? There's such a price difference between them all. I'm leaning toward buying a lower from a local company just for ease of sale, but their price for a lower is roughly $100 higher than others I've seen. Is it worth the convenience? I don't know. I have to say, in planning out this build, I'm blown away by the vast number of companies that make parts. What really discerns one from another? |
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