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Thread: Reliability Enhancement Modification

  1. #11
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    But I just couldn't help myself.

    Seriously though, not to take away anything from the author's knowledge and method, the fix suggested does leave a lot of room for if but & and, me thinks.
    Per Ardua ad Astra.
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  2. #12
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    On the buffer spring.

    Whats the general opinion here? Is it necessary (or better) to just replace the stock spring out of hand? I've swapped out buffers for an "H" but seem to be doing fine with the factory spring.

  3. #13
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    Here's some buffer spring info that might be of interest:

    http://vuurwapenblog.com/2011/06/16/...e-differences/

    the author of that blog is a member here.

    From my personal experience, I have a DD 16" midlength setup that's running great with an H2 buffer and a Sprinco blue spring, even with moderate commercial ammo like PMC. From reading I would have thought that was too much weight and spring, but it's working well for me (zero stoppages of any kind, so far). The same upper works well also with a standard carbine spring and an H buffer, and I'm sure it would work with a carbine buffer as well.

    I think that spring/buffer choice is to some extent tuning for your upper and ammo choice as well as your personal preferences though. With many barrels there will be multiple spring/buffer arrangements that work well. The rifle-length spring/buffer setup does seem more tolerant and that's much of the concept for the VLTOR A5 setup.

  4. #14
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    Good stuff. Just went ahead and ordered sprinco set of springs (buffer & xtractor.) Really curious to see how it affects shooting the cheapo ammo. Get some failure drills in.
    Per Ardua ad Astra.
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  5. #15
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    Not really. It all depends on what your end goal is. For example- if we knew that a standard spring was good for 8000 rounds and Springco spring was good for 50000 rounds, then I would say getting a blue Springco makes sense in the long run. Cost of 6 regular springs x $$$ as opposed to a blue Springco at xxxx amount.

    Springco claims a longer spring life and I know that the one I was previously using had very little shrinkage compared to it's new length after about 5K rounds.

    Most who have used the Springco springs have observed long life and solid functioning of the weapon.

    In any case anything you can do to extend the life of the weapon, reduce malfunctions and extend the maintenance of certain parts is a good thing in my book.

    Quote Originally Posted by tgace View Post
    On the buffer spring.

    Whats the general opinion here? Is it necessary (or better) to just replace the stock spring out of hand? I've swapped out buffers for an "H" but seem to be doing fine with the factory spring.



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  6. #16
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    I have 3 of the Sprinco springs...The main reason I get them is basically so I don't have to worry about replacing them.

    I have a Red in my M&P15T - combined with a H2 buffer it seems to do a nice job of calming that overgassed carbine down a bit. Got a Green in my rifle stock/buffered 3 gun rifle, and got a White in 16" middy.

    Highest round count is on the red one - that's got over 10k rounds on it so far, no troubles. The others probably around 2/3k each.

    One "cosmetic" side benefit with these things is that they seem to stop the sproing noise in your rifles...I never used to really notice it with standard springs, but since I switched to the Sprincos, now when I shoot a rifle with a stocker in it, I can hear it!

    Re the spring extractor springs - they are very stiff and it can be a a bitch to pin your extractor back to your bolt when you have one installed. If you like to pop your extractor out on occasion for cleaning, it can be a PITA. I've got a couple, but I'm not currently using them.
    Dan

  7. #17
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    Quote Originally Posted by Iraqgunz View Post
    As for the the O-ring.....not so sure. I have actually seen it cause some issues as well.
    Can you share some issues? I've always felt extra strength extractor spring + O ring = belt + suspenders. Never had a problem with just the enhanced spring and a black insert.

    Fired brass always seemed to have pretty noticeable extractor "scratches" on the head/rim with both installed. Maybe they were always that way - I might just be paying more attention now that I reload.
    Last edited by bananaman; 07-03-11 at 07:51. Reason: Brevity
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  8. #18
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    Too much extractor tension can prohibit the extractor from grabbing the rim of the cartridge and not allow it to extract. In addition it is entirely possible that you may experience torn case rims.

    Quote Originally Posted by bananaman View Post
    Can you share some issues? I've always felt extra strength extractor spring + O ring = belt + suspenders. Never had a problem with just the enhanced spring and a black insert.

    Fired brass always seemed to have pretty noticeable extractor "scratches" on the head/rim with both installed. Maybe they were always that way - I might just be paying more attention now that I reload.



    Owner/Instructor at Semper Paratus Arms

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  9. #19
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    Double post
    Last edited by jonconsiglio; 07-03-11 at 10:42.

  10. #20
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    Every upper I have run on the A5 has shown an improvement one way or another. I recently picked up an LMT mk18 upper and I'm trying to decide which A5 buffer I should get for that. My thought is that I should just order their A5 h3 (whichever the heaviest is) and lighten it if needed as I have a few carbine buffers around.

    I ran a Noveske mk18 upper on the standard 5 for a short while and it performed well, I'm just wondering what the best choice would be. Either way, there's a definitely improvement over the carbine RE's I've run in the past.

    I thought the recommendation was to always stay with the standard springs and not go for the Sprinco springs. Interesting as it's something I've never considered.

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