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do I need a new bolt?

Discussion in 'Gunsmithing and Repairs' started by csa77, Jan 9, 2013.

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  1. csa77

    csa77 Member

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    Iv got a colt target match AR15 that Iv had for about 15 years. I ordered smaller 16" rainier barrel to replace the heavy 20" hbar that's on there now.

    Iv read new barrels require new bolts, but mine has probably never been shot more then 200 times, do you think that 200 rounds or less is enough to warrant changing the bolt?
     
  2. BBBBill

    BBBBill Member

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    I seriously doubt it. Just to be safe, check the headspace, but more than likely you are GTG.
     
  3. Jaxondog

    Jaxondog Member

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    it's wore out, give it to me :D
     
  4. lefteyedom

    lefteyedom Member

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    I liked having each upper complete with it own bolt. That way it keeps it simple and if you ever pick up another lower you can have a second complete rifle....

    That said you do not need a "new bolt" you just have to have the headspace sett correctly.
     
  5. backbencher

    backbencher Member

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    If you're really paranoid, get a .223" or 5.56x45mm no-go gauge. I'm not sure I've ever heard anyone mention using one on an AR.
     
  6. BBBBill

    BBBBill Member

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    I use them every time I assemble a bolt/barrel combination that hasn't been together before. It is just good business practice to verify that it is correct. I sleep better at night knowing that I did not cut corners. Never assume.
     
  7. fguffey

    fguffey Member

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    CSA, I measure the effect the bolt has on off setting the length of the chamber, for years the recommendation has been “Purchase a bucket of bolts”. I use the .000 (zero method) , this method/technique allows me to have +, zero or – bolts, all I have to do when ordering a bolt is find someone that understands what I am talking about.

    F. Guffey
     
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