Heavy Hammer Spring
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Thread: Heavy Hammer Spring

  1. #1
    G2 [OP]
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    Heavy Hammer Spring

    Ok, after a few light primer strikes on some tulla 7.62x39 I figured it was time to upgrade to the heavy hammer spring. Just for the sake of compatibility, since I have 2 xcr's the other in 5.56. Is there any issue with just putting the heavy spring in both my lowers?
    Inquiring Minds Want To Know

  2. #2
    XCR Guru navalbeaver's Avatar
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    The only issue with the spring that I've found is that it tends to raise the trigger pull a bit.

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    G2 [OP]
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    Thanks Nate...So add another spring to my parts order

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