Upper ???

Discussion in 'AR-15 Discussion' started by aandabooks, Dec 22, 2012.

  1. aandabooks

    aandabooks New Member

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    I bought a S&W M&P 15 in 5.56 and wanted to ask about what other uppers would fit on this gun? The reason for asking is that the 5.56 ammo is getting hard to find and is pricier than .223. If I would buy a less popular caliber that costs even a little more I will be able to find ammo more readily available.

    I already have a M&P 15-22 so I don't need a .22. What is out there that won't make the ammo too much but more available?
     
  2. Quentin

    Quentin New Member

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    Lots of different caliber uppers will fit but in general, ammo wise, they all cost a lot more than .223, with the exception of 5.45x39. I'd stick with 5.56/.223.
     

  3. ShagNasty1001

    ShagNasty1001 New Member

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    I'm finishing a build in 300 blackout. Ammo isn't much more than some .223/5.56 but it is slightly hard to find. I agree with Quentin on sticking with .223/5.56
     
  4. aandabooks

    aandabooks New Member

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    The 5.56 is proving hard to find this week. I like to put in a good stockpile of ammo for all the calibers I own. I bought 140 .223 on Friday at $7.75/20. The same brand in 5.56 would have been 11.95/20. Why the difference? How is the .223 going to shoot in the 5.56 chamber?
     
  5. purehavoc

    purehavoc New Member

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    The .223 will shoot just fine out of a 5.56 chamber , basically the same cartridge just lesser pressure , I shoot .223 ammo out of all my 5.56 barrels and it works just fine
     
  6. aandabooks

    aandabooks New Member

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    So don't bother spending the extra money on 5.56? I had thought that the two were usually the same price. Gander did have a bunch of 5.56 but it was all tracer for $9.95/20.
     
  7. Quentin

    Quentin New Member

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    Don't buy the tracer, or at least be careful with it. It can start fires and no rifle should get a steady diet of it.