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Thread: AR spring replacement intervals?

  1. #1
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    AR spring replacement intervals?

    When do you replace the operating springs in an AR?
    Buffer tube, fire control, extractor and ejector springs.
    Is there a written rule for rounds fired and replacement.
    Thanks

  2. #2
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    Quote Originally Posted by ShortyB
    When do you replace the operating springs in an AR?
    Buffer tube, fire control, extractor and ejector springs.
    Is there a written rule for rounds fired and replacement.
    Thanks

    Ah, one of my favorite subjects. Most of the springs in your AR are SS. Everytime they are used they take a set (become weaker). I generally change out my buffer springs every 2,000-3,000 rounds. I change out my extractor spring every 4,000-5,000 rounds. Most times the spring is still working, but am simply doing preventative maintenance.

    The next question is, are all spring created equal? The answer is a 100% NO! All springs wear out, but some materials do it slower than others. Chrome Silicon (CS) springs have a much higher life span than SS springs. They take a set the very first time they are used and never again. For this reason, I recomend them to be used in mags, extractors and buffer tubes.

    There are also different levels of CS springs. A company called ISMI makes the very best CS springs on the planet IMHO. Their springs are shot peened, stress relieved and have a 1 year warranty! I have changed out all my buffer springs with theirs and noticed a diference in felt recoil over my old spring. The down side to these springs is that they are expensize. ISMI buffer springs run at about $18 a pop. SS buffer springs are only $5.

    A simple and good test to see if your buffer spring still has enough power in it, it to take load up a 30rd mag. Lock the bolt back and insert the mag. Hit the bolt catch and see if it was able to strip a round off the mag and FULLY insert it into the chamber. If it cannot, it is a good time to change out springs!



    C4




    Here is a pic I took of a used buffer spring and two new ones. You can see how use really shortens the SS spring.


  3. #3
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    Too bad they dont make Mag springs. i need about 4 to replace teh springs that went tits up in my Sig 229 mags. I got 4 from CDNN and about amonth or so later all 4 springs quit. I had thought about buying one of the ISMI springs to replace the buffer spring I have now. I have about 3000 rounds through my RRA.

    Grant would the ISMI spring work well with an Enidine Hydraulic Buffer?
    Love you Pop. F*ck Cancer.

  4. #4
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    Quote Originally Posted by Voodochild
    Too bad they dont make Mag springs. i need about 4 to replace teh springs that went tits up in my Sig 229 mags. I got 4 from CDNN and about amonth or so later all 4 springs quit. I had thought about buying one of the ISMI springs to replace the buffer spring I have now. I have about 3000 rounds through my RRA.

    Grant would the ISMI spring work well with an Enidine Hydraulic Buffer?

    They DO make springs for high capacity SIG mags! They are $10 apiece.

    I run the ISMI with the Enidine and works just fine.



    C4

  5. #5
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    So do you carry the springs for Sig mags? Or where do I pick those up.
    Love you Pop. F*ck Cancer.

  6. #6
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    Quote Originally Posted by Voodochild
    So do you carry the springs for Sig mags? Or where do I pick those up.

    I can order them for you if you like. Give me a call later on today to place your order.



    C4

  7. #7
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    Great information, some of which I knew but alot of it I didn't.


    Thanks,

    TS
    Haji don't surf!
    I Buy C Products Magazines

    AR15Armory.com

  8. #8
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    Quote Originally Posted by TigerStripe
    Great information, some of which I knew but alot of it I didn't.


    Thanks,

    TS

    Thanks!


    C4

  9. #9
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    Quote Originally Posted by TigerStripe
    Great information, some of which I knew but alot of it I didn't.


    Thanks,

    TS
    I believe that's the reason why this forum was started

    The goal was to create a forum that was both educational, informative and fun!

  10. #10
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    Along the issue of mag springs, don't they also make springs for Glock? How do C Products springs compare for AR's/M16's?

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