AR15 charging handle hits UBR top???

Bullseyelr

Sergeant
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May 28, 2009
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VA
Does anyone have this problem? When you pull the charging handle back on the AR15, it "skids" across the top of the Magpul UBR stock? Any way to fix this?
 

ORD

Montani Semper Liberi
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Nov 12, 2005
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Re: AR15 charging handle hits UBR top???

As long as the "skid mark" is just light surface scratching and it is not gouging deeply into the polymer, it is nothing to worry about. Most AR stocks can get those kind of marks after a while...especially if you are running them more than just on the bench at the range or under other "light duty."

If it is really digging in, you could have a bent CH or the receiver extension could be a little canted or "overmolded" slightly making it seem worse than it is. Try pulling up slightly on the CH when you charge the rifle and see if that helps. If it really bothers you, you can sand it down a little, but I'd just let nature run its course. It won't hurt the UBR (other than appearance-wise) or the CH.
 

Bullseyelr

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May 28, 2009
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Re: AR15 charging handle hits UBR top???

I tried to lift up on the CH and that helped alot. I will just have to remember to do that every time at the range. It isnt a deep scratch but rather a light "rubbing" on the top. I was just wondering if I installed something wrong and if anyone else had this same problem. Thanks for the info. Anyone else have this issue?
 

Bullseyelr

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May 28, 2009
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Re: AR15 charging handle hits UBR top???

anyone else? I got a new CH and it still does it. I think the stock plastic is high.
 

Strangedays

Gunny Sergeant
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  • Feb 27, 2009
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    Tacoma Washington
    Re: AR15 charging handle hits UBR top???

    I have the UBR and never had it touched by the CH at all. Do you have anyone else who could try it to see if its the way you are pulling back on the rifle?
     

    JSTARSZ

    Lefty's Rule
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    Minuteman
  • Feb 6, 2008
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    Wolftown
    Re: AR15 charging handle hits UBR top???

    sounds like its time for the Dremel tool to come out and play. I have had issues with it hitting my stock before and I shaved some off the bottom of the charging handle and now it doesn't hit it anymore.
     

    BasraBoy

    Gunny Sergeant
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    Mar 29, 2008
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    Dark Side of the Moon
    Re: AR15 charging handle hits UBR top???

    I'm running a PRI Gas Buster and UBR - there is less than a millimetre clearance but it runs out parallel and does not contact the top of the stock.
     

    Grump

    Gunny Sergeant
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    Oct 23, 2008
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    Re: AR15 charging handle hits UBR top???

    Never heard of "wheelie wheels"?