Quote:
Originally Posted by Tombstone RJ
Yep. So basically you have two different yet complete uppers, one for the 5.56 and one for the 300 blk. All you have to then do is swap the uppers out with the one lower (super easy to do). Same magazine will work for the 5.56 and the 300 blk.
Now, it is a bit costly to have two complete uppers but the swap is so damn easy it's almost too good to be true. I've priced out building a 300 blk upper and it costs up to $1400. The key is getting a good barrel. You may be able to do it for around $1000.
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Sounds like a great idea!!