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Old 10-18-2018, 7:57 AM
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protohyp protohyp is offline
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sometimes it isn't the BCG in the buffer tube.

Check that the castle nut and butt plate dont stick too high above the buffer tower.

You can see that the charging handle can get stuck and will leave aluminum shavings on the top of that area or witness marks that show the charging handle is contacting the buttplate or castle nut and will cause enough friction for none of that stuff to move freely.

if thats the case you'll need to file down till everything clears. this happens on mil spec rifles as well.
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