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Thread: AR Piston Upper - Not a DI vs. Piston Question

  1. #51
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    Quote Originally Posted by Outlander Systems View Post
    O58HD,

    Get a MR556 upper. Also, talk to montrala about them, as he's a great wealth of info.

    Despite what the errornet says, they're phenomenal guns.
    I would second that emotion. You could have it reprofiled, cut, nitrided, etc. to however you want it. Not cheap by any stretch of the imagination but if you want the premier piston system, well there it is.
    11C2P '83-'87
    Airborne Infantry

  2. #52
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    Quote Originally Posted by prepare View Post
    I have a Sig 516 that I've been really happy with. You can get the upper in 10 or 16" for $1155
    I'll second the SIG 516 recommendation.
    I like mine.

  3. #53
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    So, I had mentioned the Wolf upper, I had no idea the T91 family had been so widely adopted by world militaries. This video just popped up on my YouTube feed from Small Arms Solutions. Very interesting to watch.

    https://youtu.be/AZNwrZRVVVY

    Sent from my Pixel 2 using Tapatalk

  4. #54
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    As an update to this thread since I am the OP, today I took advantage of 15% off Savings LMT was offering and I ordered their 16" CQB Piston upper in 5.56. Since I already have that LMT lower, this was an easy decision. However, I started looking close at the HK upper and I see Midway USA has them in stock.

    I have never fired an AR with the gas piston system so I am really looking forward to running this and see if it lives up to the hype. It will be interesting to see how much fouling comes from the gas block.
    Maj. USAR (Ret) 160th SOAR, 2/17 CAV
    NRA Life Member
    Black Mesa Ranch. Raising Fine Cattle and Horses in San Miguel County since 1879

  5. #55
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    Quote Originally Posted by HKGuns View Post
    My advice, stick with HK or SIG. The others are widely known as junk, especially Adams.
    It’s funny you say that. I had a 14.5 416 upper which I sold in favor of a more customizable Mr556. I had Marvin Pitts shorten the barrel to 11.5, turn it down, and dimple it. I had the gas port opened to use an adjustable 416 gas block. And after all that, I still preferred my frankengun AA kit and FN CHF 11.5, so I sold the MR.

  6. #56
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    Quote Originally Posted by Hkbeltfed View Post
    It’s funny you say that. I had a 14.5 416 upper which I sold in favor of a more customizable Mr556. I had Marvin Pitts shorten the barrel to 11.5, turn it down, and dimple it. I had the gas port opened to use an adjustable 416 gas block. And after all that, I still preferred my frankengun AA kit and FN CHF 11.5, so I sold the MR.
    Everyone is different.

    My Stock MR’s are my most accurate AR’s.

  7. #57
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    Quote Originally Posted by Hkbeltfed View Post
    It’s funny you say that. I had a 14.5 416 upper which I sold in favor of a more customizable Mr556. I had Marvin Pitts shorten the barrel to 11.5, turn it down, and dimple it. I had the gas port opened to use an adjustable 416 gas block. And after all that, I still preferred my frankengun AA kit and FN CHF 11.5, so I sold the MR.
    Where did you get the FN barrel?

  8. #58
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    I can’t remember. If you referring to which one, the Spike’s lightweight. If you’re shopping... https://gun.deals/search/apachesolr_search/815648020859

  9. #59
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    OH58D, I think you'll be happy with your LMT Piston upper, I've got 1.5k rounds through mine and I'm really pleased with it. It's a super smooth shooter with a unique recoil impulse, never had any kind of failure. Mine has one of the Rock barrels and is a very accurate shooter. I've gotten used to the little extra heft and it doesn't really bother me at this point. Hope you enjoy your new buy.

  10. #60
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    Quote Originally Posted by AkEnabler View Post
    OH58D, I think you'll be happy with your LMT Piston upper, I've got 1.5k rounds through mine and I'm really pleased with it. It's a super smooth shooter with a unique recoil impulse, never had any kind of failure. Mine has one of the Rock barrels and is a very accurate shooter. I've gotten used to the little extra heft and it doesn't really bother me at this point. Hope you enjoy your new buy.
    Still waiting on shipment, but things move slow this time of year. I sent an e-mail to LMT about any kind of gas fouling near the block, and they indicated it is minimal. Can't wait to try it out.
    Maj. USAR (Ret) 160th SOAR, 2/17 CAV
    NRA Life Member
    Black Mesa Ranch. Raising Fine Cattle and Horses in San Miguel County since 1879

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