Originally posted by Russ81
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if you replaced the stock or buffer tube , you may have created issues .. or even wrong buffer as they look almost alike but are not...
first is put in an empty mag and charge it .. does the bolt catch engage and hold gun open ? if it doesn't you're short stroking buffer too long or tube too short ..
next if it held open, load one round ... fire , if bolt does not hold open , but buffer is the correct length, your buffer may be too heavy ... iv'e seen some guns with wrong springs as well , some are longer than others .. that would be hard to spot as there are no markings on them ...
if you know the parts you swapped , that would be the quickest way to see where you went wrong ... if you used ar 15 parts.. there is your problem already , those don't always or even work even though they look like they fit ...
ar10's are not "mil" specs all parts fit type animals , i've fixed 2 of them in the past , one of them being my PAS that came with the wrong buffer ... they had put an ar15 rifle buffer instead of an ar10 buffer (slightly shorter) ... would not hold open ... ran fine after that ...
hope that helps ... this is just my 2c...
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