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Thread: Abuse limits for an AR

  1. #11
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    So the weak points just seem to be the plastic obviously and the barrels. Gas tunes are a given although personally ive never seen one damaged underneath rails just under broken hand guards.

    I wont be worrying to much about getting blown up carrying a civilian rifle, Has anyone seen any kind of damage caused from hard use?

    I'm particularly interested in how secure the barrel is on a LMT MRP if anyone has any firsthand experiences with any failures or links to some info on something along those lines.

  2. #12
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    Quote Originally Posted by Jsop View Post
    So the weak points just seem to be the plastic obviously and the barrels. Gas tunes are a given although personally ive never seen one damaged underneath rails just under broken hand guards.

    I wont be worrying to much about getting blown up carrying a civilian rifle, Has anyone seen any kind of damage caused from hard use?

    I'm particularly interested in how secure the barrel is on a LMT MRP if anyone has any firsthand experiences with any failures or links to some info on something along those lines.
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  3. #13
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    Quote Originally Posted by Jsop View Post
    So the weak points just seem to be the plastic obviously and the barrels. Gas tunes are a given although personally ive never seen one damaged underneath rails just under broken hand guards.

    I wont be worrying to much about getting blown up carrying a civilian rifle, Has anyone seen any kind of damage caused from hard use?

    I'm particularly interested in how secure the barrel is on a LMT MRP if anyone has any firsthand experiences with any failures or links to some info on something along those lines.
    i wonder if the barrel used in a M4A1 with the SOPMOD Block II would be safer since the rail system almost covers the barrel

  4. #14
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    there are lots of videos of guys driving over rifle with heavy vehicles and such, as well as tossing them out moving vehicles. One was a member here I think.

    M4's are FAR more reliable and sturdy than they are often given credit for.

    Just to test a theory - I'm thinking I might just build a junk AR and beat the snot out of it, shoot the crap out of it, and never clean it - just to see how long it takes for something to go wrong. I think the results might be surprising. And from there - an actual quality unit would only mean that the results should be better!

    I know SEVERAL BCM users who have carbines over 3K without a single cleaning yet.

    It is plenty sturdy enbough of a system.

  5. #15
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    Quote Originally Posted by steelonsteel View Post
    there are lots of videos of guys driving over rifle with heavy vehicles and such, as well as tossing them out moving vehicles. One was a member here I think.

    M4's are FAR more reliable and sturdy than they are often given credit for.

    Just to test a theory - I'm thinking I might just build a junk AR and beat the snot out of it, shoot the crap out of it, and never clean it - just to see how long it takes for something to go wrong. I think the results might be surprising. And from there - an actual quality unit would only mean that the results should be better!

    I know SEVERAL BCM users who have carbines over 3K without a single cleaning yet.

    It is plenty sturdy enbough of a system.
    I most always go more than 2k rounds before cleaning, and I never clean before 1k. Ive never went 10k rounds, but im sure ive went 5k. The system is tried and true, with almost 50 years of service, so it will take the abuse without issue.
    Brandon
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  6. #16
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    Cleaning is Not what im inquiring about.
    There are a lot of opinions on that and does not speak for the structural strengths and weaknesses only for the engineering of its tolerances.

  7. #17
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    What kind of abuse are you asking about? Running it hard, maybe banging it on the ground in a carbine class or shooting around? Or trying to break it?

    The only abuse I would really be concerned with my personal weapons is extremely hot ammo, which you can't know about until you shoot it. If I had a kaboom, regardless of how it looked I would not shoot it at least until I could gauge it completely.

    It's possible you jacked up the muzzle threads of your M4 on the rocks, and that's what threw off your zero.

  8. #18
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    Im talking about accidental abuse and excessive wear. Similar to the DD torture test, things like that happen. Im wondering if certain parts parts are substantially more resistant to failure and wear. And specifically what would one look for as subtle signs that there is some damage?

    For example: your rifle falls out of the back of a truck and get struck by another. I "looks" fine but it may not be... what would be a place to look that would be effected the most, Obviously the plastics might be fked but what about your receiver extension or something like that.
    I know a rail can get bent out of shape, changing the zero on your rail mounted sights.

    Seems maybe not to many people have really broken their rifles except for an IED.

  9. #19
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    Odd.

    I would have thought that the weak point would be the grip getting pulled out/broken off of the lower. One smallish screw in aluminum with a lot of leverage. Second would be the receiver extension getting tweaked or broken at the threads.

    Thinking along the lines of the OP with falling and diving at the ground for cover, and the occasional use of the butstock as a bat.
    Sticks

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  10. #20
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    The pistol grip is actually pretty protected. Most folding-stock AKs have a reinforcement plate under the pistol grip, but the fixed-stock versions don't. The reason is because if you drop a rifle, it'll hit the magazine or the buttstock without touching the pistol grip.

    I don't have an AR to try it on, but I imagine it's pretty similar Have to get a wonky angle to get a hard hit directly on the pistol grip.

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