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Thread: LMT Enhanced Carrier + A5 system + BCM 14.5" middy

  1. #51
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    Here are some pics of a new enhanced carrier I got from LMT a couple of weeks ago. The bolt is a new BCM from G&R Tactical.








  2. #52
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    Quote Originally Posted by Biggy View Post
    Here are some pics of a new enhanced carrier I got from LMT a couple of weeks ago. The bolt is a new BCM from G&R Tactical.
    Great pix and thank you! That is EXACTLY what mine looks like. I'll post a few pix to show what my light polishing looks like in an hour or so.

  3. #53
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    Well, some of the pics were in different orientation when I edited and saved them but somehow they didn't post that way. Not that it matters to me but if the current LMT carrier keys are MIM, they have a very smooth machined type of finish. Also, I though LMT used the large spool firing pins. The new LMT pins I just got from G&R mike out at.375". What size are Colt pins and why the different sizes ?
    Last edited by Biggy; 09-04-12 at 00:31.

  4. #54
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    I am currently running the LMT enhanced carrier with a BCM bolt and Vltor A5 on my SBR and have been for a few months. My gun will not reliably cycle without the suppressor when using trash ammo. Suppressed it seems to do fine. With M855, M193 and Hornady TAP it runs fine.

    I certainly seemed to notice a difference between the standard carrier and the enhanced.


    Quote Originally Posted by sadmin View Post
    Interested in report; I couldn't get 2 rounds through my 14.5 mid, with A5 and LMT enhanced carrier today. Tried PMC, Wolf, ASYM, all the cheap stuff. It's my toy to see where the sweet spot is in stupid low recoil. Also has BCE 1.5- I ordered the A5H0 and H1 to see if there is any change.


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  5. #55
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    Quote Originally Posted by Iraqgunz View Post
    I am currently running the LMT enhanced carrier with a BCM bolt and Vltor A5 on my SBR and have been for a few months. My gun will not reliably cycle without the suppressor when using trash ammo. Suppressed it seems to do fine. With M855, M193 and Hornady TAP it runs fine.

    I certainly seemed to notice a difference between the standard carrier and the enhanced.
    Gunz, are you still running the Springco Green spring with the A5?

  6. #56
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    Quote Originally Posted by Iraqgunz View Post
    I am currently running the LMT enhanced carrier with a BCM bolt and Vltor A5 on my SBR and have been for a few months. My gun will not reliably cycle without the suppressor when using trash ammo. Suppressed it seems to do fine. With M855, M193 and Hornady TAP it runs fine.

    I certainly seemed to notice a difference between the standard carrier and the enhanced.
    You're runnin' a standard port, and the crazy heavy buffer aren't you?
    We miss you, AC.
    We miss you, ToddG.

  7. #57
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    Quote Originally Posted by BufordTJustice View Post
    I'm not shitting on you, brother. I just wanted to be clear. Grant has documented extensively his experiences with the LMT E-bolt in his grand poo-bah Best-SBR-Ever thread that is 400 pages long.

    In all seriousness, he had some serious, nearly undiagnosable reliability issues that disappeared completely when he used the E-Carrier with a std bolt.

    I've heard some state that, despite the extractor springs in the E-bolt being under less stress, they just don't supply enough pressure to reliably function. I do not own an E-bolt, so this is anecdotal.
    I didnt take it that way at all, thank you for the direction. I recall that now from Grants thread as well. I have another enhanced carrier by itself and planned on using a FN bolt I had, but it will not fit at all, but thats another thread. Ill extract my BCM BCG and use that bolt and give it a shot. That description of the E-Bolt matches up with my issues yesterday; there was no extraction at all for any of the ammo I tried.
    Matthew 10:28

  8. #58
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    Just got back from the agency range. Holy F*CK it's hot (Orlando 32829). Our massive berms (35ft high) always seem to be in the perfect position to block any breeze that may be blowing. Oh well.

    The gen 1 E-carrier ran perfectly in my wife's 14.5" middy with a Colt rifle spring and a Vltor A5H3 buffer. Locked back on empty even using Tula in a shitty and old C-products magazine that i've clipped one hoop of the base of the spring off (It's purely to test for reliability at the range....and is marked accordingly). Holy shit ti shoots smooth! Even with Federal M193 and Federal XM556FBIT3 62gr TBBC.

    My BCM did cycle on Tula .223 using a Colt Rifle spring and an A5H4 buffer, but it did fail to lock back on empty about 50% of the time. It did get hung up on the ledge on the front of the bolt carrier...but that's a failure to function (normally) in my book. Ran 100% on all other ammo types.

    When I switched either AR to a Brownells aluminum mag with CS spring and MP gen3 follower or Lancer L5 AWM, Tula locked the bolt to the rear no prob.

    Shooting Tula through either gun felt like a goddamn cap gun...like it wasn't real...just a loud noise.

    Also, the newer E-carrier in my BCM is also still noticeably stiff/tight with the McFarland gas ring. I have a feeling that it will likely lock back on empty using Tula once this happens even with my shitty C-prod test mag. I'm going to downgrade to the Brownells CS Rifle spring (noticeably weaker than the Colt rifle spring) to give me some wiggle room.

    I added a few drops of lube to the inside of the newer carrier since it was dry and is still breaking-in.

  9. #59
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    I use them exclusively now. After 10K rounds, that spring has lost little if any sompression based on measurements.

    Quote Originally Posted by BufordTJustice View Post
    Gunz, are you still running the Springco Green spring with the A5?



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  10. #60
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    Standard port, E-carrier, Springco spring and H4 buffer.

    Quote Originally Posted by Magic_Salad0892 View Post
    You're runnin' a standard port, and the crazy heavy buffer aren't you?



    Owner/Instructor at Semper Paratus Arms

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