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OK how tight do you make the Castlenut on the stock to the retaining plate?

I've seen from 40 foot pounds to just tighty tight.
 

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40 ftlbs seems a bit much. I just snug them down tight, you will know when it stops. More like 15-18 ftlbs. I stake all of mine as well. If you are going to actually use a torque wrench make sure its at a 90 degree angle.
 

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the manual says 40 pounds plus or minus 2 pounds
 

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I know what happens when you under tighten it. The buffer retaining pin pops out and the gun jams. Lucky for me I wasn't shooting at anything important.
 

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I know what happens when you under tighten it. The buffer retaining pin pops out and the gun jams. Lucky for me I wasn't shooting at anything important.
Been there done that. I don't stake them, but use thread locker now.
 

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the manual says 40 pounds plus or minus 2 pounds
+1----unless you are using a polymer lower receiver, then check with the manufacture
 

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I swap buffer tubes around, so I prefer to stake instead of using any thread-locker. I do not measure the torque I apply, but I do torque them down very well. Easily more than I do my muzzle devices, which I measure meticulously at 20-25 ft-lb. 40+-2 ft-lb is correct spec.
 

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Of course, if you use a standard A2 stock, then you don't have to worry about it.
 

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Of course, if you use a standard A2 stock, then you don't have to worry about it.
dabbled with sliders, have nothing but A2 stocks now. have to deal with mags that rattle, a stock that rattles is bothersome
 
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