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Thread: Crack in my new lower (pics)

  1. #21
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    Looks like a superficial gouge you scraped up from using vise grips or possibly from the hammer you used. Just my 2 cents. Vise Grips? Really?

  2. #22
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    Quote Originally Posted by MistWolf View Post
    Who ever started the rumor that it's ok to install roll pins with Vise Grips or Vise Grip clones needs to be taken out behind the work shop and have things explained to his knee caps
    My kneecaps recall that I've used vise-grip, channel locks, and C-clamp on the trigger guard on various occasions and have found all three methods to work fine. What's your specific objection?

  3. #23
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    Vise Grips and their clones increase clamping pressure on a rising curve, not linearly which make them difficult to control when pressing pins. They also have sharp teeth which easily tear through tape. Both factors are a recipe for disaster and will cause damage to parts. Channel locks with their teeth are only a little better.

    Compounding the problem is the builder who has little to no experience wrenching anything, sees some video on youboob installing pins with Vise Grips without clue as to how much damage can be done with one little slip

    C clamps make good presses
    Last edited by MistWolf; 10-07-12 at 02:25.
    INSIDE PLAN OF BOX
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  4. #24
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    Here is what I don't understand about the vise grip crowd. It's not hard to install the pin, if you simply get the right tool and use the right technique. Lube the pin, use a start pin punch and follow through with a roll pin punch. It literally takes about 2 minutes to accomplish this.

    If someone is struggling with that then they sure as hell won't be able to installed the trigger guard, lower receiver extension or even a barrel.



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  5. #25
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    I assembled the exact same combo for the 4th time last week with absolutely no problems. I think your method probably caused the damage.

  6. #26
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    Quote Originally Posted by MistWolf View Post
    Vise Grips and their clones increase clamping pressure on a rising curve, not linearly which make them difficult to control when pressing pins. They also have sharp teeth which easily tear through tape. Both factors are a recipe for disaster and will cause damage to parts. Channel locks with their teeth are only a little better.

    Compounding the problem is the builder who has little to no experience wrenching anything, sees some video on youboob installing pins with Vise Gripswithout clue as to how much damage can be done with one little slip

    C clamps make good presses
    Wow I didn't realize you meant they used them to press the pin in. I thought you meant to hold the pin while tapping away on it!

    I just built my very first lower and found everything was quite easy to install (30 mins while sitting on the bed watching TV)

    Sent from my Galaxy Nexus using Tapatalk 2

  7. #27
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    It looks like a cold shut in the forging. Most likely harmless.

  8. #28
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    i think the reason people use clamps/vise grips is not because they think it's easier, but its cheaper than getting new punches. I just used .99$ punches from lowes and worked fine for me....

  9. #29
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    I use all kinds of things to install pins and have never had a problem, but then again, after rebuilding transmissions and fixing cars for years guns seem pretty simple to me. I guess I have built up a good sense for when to stop before something bad happens.

  10. #30
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    I bought all the necessary AR tools before I bought my first rifle. Now that I have the AR addiction I am glad I did because I seemingly spend every spare dollar treating my disease.

    As others have said, having the right tools makes life much easier and allows the avoidance of these situations.
    Last edited by Atlshaun; 10-02-12 at 22:08.

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