Are AR's tough on scopes?

Discussion in 'AR Talk' started by daved20319, Mar 20, 2017.

  1. Mar 20, 2017 #1
    daved20319

    daved20319 XDTalk Member

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    Odd question, maybe, but I'm just getting back into the firearm world after spending the last 10+ years almost exclusively with air guns. Like most, I started with a spring piston rifle, or springer, and one of the first things springer guys learn is to make sure you have a springer rated scope. The reason is the springers (supposedly) unique recoil pulse, both back, like a typical firearm, but with a forward component as well, from the piston rebounding at the end of its stroke. Regular scopes are supposedly braced for rearward recoil, but not forward, thus springers have a reputation for eating scopes. Thing is, in thinking of the operation of an AR, it's really very similar to a springer on steroids. You have the initial rearward pulse from the bullet being launched down the barrel, but then the BCG is caught by the buffer spring, launched forward to pick up another cartridge, then slams to a stop as it goes back into battery. Makes me suspect that AR's are also scope eaters, but I haven't seen anyone talking about it, thus the reason for my question. Later.

    Dave
     
  2. Mar 20, 2017 #2
    Cuda66

    Cuda66 XDTalk 20K Member

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    No, they are not.
     
  3. Mar 20, 2017 #3
    nedro

    nedro XDTalk 100 Member

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    A scope on an AR couldn't have an easier time. It's all about the recoil.
    What do you think a 30-06 bolt gun does to a scope? Nothing.
    Don't worry about it. Just make sure to buy a good one.
     
  4. Mar 20, 2017 #4
    WantBigBoom

    WantBigBoom XDTalk 500 Member

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    Not entirely. What he says about airguns is true, and has nothing to do with the rated caliber of the scope, it's about the amplitude and timing of the impulse.

    That said, ARs are not known to be rough on scopes. There is a forward recoil component, but it's not the predominant impulse, nor the largest, nor as "sharp" as an airgun piston air-hammering.
     
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  5. Mar 20, 2017 #5
    ArmyGuy45

    ArmyGuy45 XDTalk 15K Member Founding Member

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    I think the better question is 'Are scopes hard on your AR's?'
     
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  6. Mar 20, 2017 #6
    daved20319

    daved20319 XDTalk Member

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    Huh?
     
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  7. Mar 20, 2017 #7
    Powerman

    Powerman XDTalk 5K Member Founding Member

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    ARs are not hard on 6 yo girls.
     
  8. Mar 20, 2017 #8
    daved20319

    daved20319 XDTalk Member

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    What he said, and what I was referring too. I can show you an air rifle that doesn't top 20 foot pounds, but can kill a scope that would live happily on a .460 Weatherby for years, in just a few days shooting. Don't sneer at air guns, I've killed more critters with air than I probably ever will with gunpowder ;).
     
  9. Mar 20, 2017 #9
    yocan

    yocan XDTalk 15K Member Founding Member

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    In general no. A few older style piston ars seemed to be more so. But any standard ar is good to go.

    Now a scar heavy has a similar problem to your airsoft. It eats everything in time. Trijicons elcans, leupolds doesn't matter. That is why I don't own a SCAR heavy. It's so ludicrous that if a scope can't survive a SCAR heavy ride that doesn't even weigh in on if that is a good or bad scope. (However it does tend toward the aimpoint T2 being built like a god)
     
  10. Mar 20, 2017 #10
    XDS40Believer

    XDS40Believer XDTalk Member

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    I guess you got your answer but, beware the quality of the scope can come into play also. If you buy cheap, most of the time the scope won't hold zero and you'll be making adjustments all the time. With todays technology though, there are some decent low budget optics out there. YMMV.
     

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