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Thread: Opinions on Adam Arms Mid-length Piston Upper

  1. #41
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    Quote Originally Posted by Phila PD View Post
    I returned my A/A complete upper do to the poor receiver finish after a lengthy phone tag with A/A customer service. I have to say they are tough to get hold of and are slow to respond but I hope that Matt who I spoke with replaces the unit as promised. They did provide a call tag so its going back on their dime.

    The finish on my receiver looked cheaply painted on and soft plus since Midway was selling these units cheap I have to wonder if they were seconds.

    Any how the A/A unit has a lifetime warranty and if the unit fails to live up to normal AR durability standards then its on them to correct it.
    Received my Adams Arms complete mid-length piston upper back yesterday from the manufacturer and it appears they completely replaced the unit. This one is in much better condition then the one I received from Midway which I now strongly feel was a return they sold as new.

    The reason I feel the unit was a resold return was the bolt and flash suppressor had carbon deposits and the finish showed contact marks that it had be mounted to a lower receiver.

    Now these marks could have occurred when Adams Arms test fired the unit after assembly but the replacement upper displayed none of the carbon or wear signs the old unit did.

    So I give Adams Arms good marks for fully replacing the unit with new but I still have to give failing grades on being able to contact their customer service and the lack of contacting you back when they promise to do so.

    Also I requested to purchase a MagPul Mid-length MOE forearm from Adams Arms and to have it fitted by them to replaced the standard set supplied on the upper. Matt agreed and stated it would be done, but I received the unit back wearing the standard set. I was not charged so its more of a inconvenience of them not following through with a parts replacement order.

    I post a review once I have a chance to test fire the upper.
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  2. #42
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    I've had nothing but smooth sailing with my 14.5" adams arms upper. Eats anything, doesn't complain, accuracy is as good as me and the eotech I have on it. I really like the melonite treatment in both the BCG and barrle. Cleans easily, I just wish I could find a melonite treated BCG for my DI gun.



    I got the whole upper duracoated by adco.
    Last edited by doctinker; 01-12-12 at 01:52.

  3. #43
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    I have a spikes with the AA from the factory and have had no problems with it at all.. the recoil does seem to be a little snappier than that of a DI and a little more of a crisper "bang" all in all love it

  4. #44
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    Quote Originally Posted by suthrncop66 View Post
    I have a spikes with the AA from the factory and have had no problems with it at all.. the recoil does seem to be a little snappier than that of a DI and a little more of a crisper "bang" all in all love it
    What buffer are you running?

    Was thinking a standard carbine or a "H" buffer to start with to cycle my training ammo which is Wolf and then see how the rifle functions with 5.56 loadings.

    I don't want to beat up the BCG or piston system by going to lite on the buffer & spring so I'll play with buffer weighs until I work up a combo which functions 100% with both.
    Last edited by PA PATRIOT; 01-13-12 at 11:17.
    We are all inclined to judge ourselves by our ideals; others, by their acts.

  5. #45
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    I don't have an AA but do have a CMMG. AA is easier to take out the piston.

    The piston system snaps back a little more but thats a good thing when youre dealing with SBRs. I run my piston with a very heavy buffer with M16 BCG and it helps with the snap. It allso makes for better feeding and smoother action/cycling.

    The advantage to the GP over DI is
    1. better for SBRs...if this is the case, which it is I think its more reliable
    2. better for suppressors...less gas in your face
    3. cleaner BCG...easier to clean and gum things up
    4. dont need to drain the gas tube when in water...not an issue for most of us

    some people say GP are "just more parts to break." I dont believe this. On the BCG you dont have a key that can come loose or break and no gas rings. Whats the advantage of DI over GP? Price.

    Maybe I'm wrong but of my 6 ARs one is a GP 16 inch CMMG. My next upper will be an AA SBR (either 7 or 10 inch). I love my GP.

  6. #46
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    So a >$200 kit is approaching the reliability of a $12 gas tube, good to know.
    Last edited by Sanpete; 01-15-12 at 22:10.

  7. #47
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    Quote Originally Posted by Sanpete View Post
    So a >$200 kit is approaching the reliability of a $12 gas tube, good to know.
    so youve obviously made up your mind before you ever experienced the product???

    there has to be a reason so many big gun companies are trying to switch/develop the piston platforms.
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  8. #48
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    Thumbs down

    Quote Originally Posted by Vash1023 View Post
    so youve obviously made up your mind before you ever experienced the product???

    there has to be a reason so many big gun companies are trying to switch/develop the piston platforms.
    I missed the part where I said I lacked experience wIth the system. Don't jump to conclusions, it makes for a smoother discussion.

    I'm very familiar with the AA system and have used it plenty. It's more expensive, slightly heavier, uses inferior materials, and has a noticeably sharper recoil impulse compared to a standard gas tube. As for gun companies using them, it makes them more money. Simple as that.

    Waste of money in my experience.
    Last edited by Sanpete; 01-16-12 at 13:46.

  9. #49
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    Quote Originally Posted by Vash1023 View Post

    there has to be a reason so many big gun companies are trying to switch/develop the piston platforms.
    Yeah, they are doing it out of the kindness of their hearts. Of course they aren't making money by selling their proprietary contraptions...



    There has to be a reason that so many highly experienced shooters don't use op-rod systems on an AR. I think that is called a clue, when people like Larry Vickers and Pat Rogers use DI rifles...


    Personally, when op-rod driven rifles were fairly new, I tried one - it had enough issues that I won't be using another.

    I guess the op-rod fans never got the memo about Filthy 14? I guess I should run out and buy some of these drop-in piston kits that are known for causing issues to solve a non-existent problem.....

  10. #50
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    I like the GP for the reasons I stated above. To me its worth the extra cash. Keeping the BCG clean has to be a good thing. The impulse you get with a piston is also good because its transmitting more force backward. That why a SBR with a piston doesnt need a muzzle device to increase back pressure. Also to decrease that feeling it you can add a heavy buffer.

    Maybe I'm wrong but I dont see how those things can be bad. Maybe its not worh the money but it does make it a better system. Also dont make a decision on the early systems. It seems like they have improved since then. Otherwise, the M16 would have been lost a long time ago. The first M16s had many issues that have been improved to form one of the best rifles in the world.
    Last edited by MAJK; 01-16-12 at 18:04.

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