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Help with A2 Flash Hider Install

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I want to mount an A2 Flash Hider on my Ar15 barrel (16") that came with a thread protector only. First the A2 clocks pretty much dead on without using a crush washer or shim etc. However once the A2 bottoms out against the barrel face behind the threaded section it only rotates slightly when tightening with a wrench. But once tightened it cannot be removed by hand, have to put the wrench back on it to get it off. Question since it clocks well without washer/shim would it work to install without them and apply a little rocksett or blue Loctite? Have the JP double crush washer and a set of shims for the job. I don't want it to be difficult to remove down the road but also don't want it backing off. Could try it a see how it works. Thanks in advance for any input.

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You might be overthinking this.  Crush washer then flash hider.  Screw it on until clocked and no more.  No loctite whatsover!

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4 minutes ago, Garufa said:

You might be overthinking this.  Crush washer then flash hider.  Screw it on until clocked and no more.  No loctite whatsover!

What he said. 

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Thanks. I overthink things often. With crush washer will need approx 270 degree rotation to get it clocked. 

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The great thing about a crush washer is you can file it thinner to fit the need.

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I am thinking that a crush washer is not needed as long as the hider is clocked correctly.

I have installed 2 of the Kaw Valley Comps that come with the instructions to not use a crush washer-as to they are not a necessity.

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28 minutes ago, krunchnik said:

I have installed 2 of the Kaw Valley Comps that come with the instructions to not use a crush washer-as to they are not a necessity.

A2?

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