onebadeye Posted March 24, 2015 Share Posted March 24, 2015 Bolt not moving when firing a round. Gas tube is clear and clean , any suggestions on what may be causing this. Link to comment Share on other sites More sharing options...
MarkCO Posted March 24, 2015 Share Posted March 24, 2015 You mean the carrier is not moving to the rear at all? If that is the case, you have a gas problem. Improperly installed GB, carrier key, blown out gas rings, etc. Link to comment Share on other sites More sharing options...
mpeltier Posted March 24, 2015 Share Posted March 24, 2015 If this is a brand new gun/build, the gas block may not be completely drilled thru. Ive had that issue on several occasions. Give us some details of the rifle in question. Age, gas system specs etc.? Link to comment Share on other sites More sharing options...
Pat Miles Posted March 24, 2015 Share Posted March 24, 2015 Adjustable gas block closed? Link to comment Share on other sites More sharing options...
larry weeks Posted March 24, 2015 Share Posted March 24, 2015 Leaving out the gas tube pin will do that. Ask me how I know... Link to comment Share on other sites More sharing options...
onebadeye Posted March 24, 2015 Author Share Posted March 24, 2015 Carrier is not moving at all , gun was shooting fine last week . Link to comment Share on other sites More sharing options...
A5H556 Posted March 24, 2015 Share Posted March 24, 2015 Carrier is not moving at all , gun was shooting fine last week . Check the following: Gas key on bolt carrier. Screws should be tight, no movement of the key. Gas rings. Bolt in un-locked position should support the weight of the carrier when stood on bolt Gas block. If adjustable, ensure it is adjusted/functioning properly. If all of the above checks out, your gas block is probably mis-aligned with the port in the barrel. Remove handguard, re-align block and re-install (assuming set-screw type). Link to comment Share on other sites More sharing options...
onebadeye Posted March 24, 2015 Author Share Posted March 24, 2015 Thanks will check gas rings Link to comment Share on other sites More sharing options...
joelogic Posted March 24, 2015 Share Posted March 24, 2015 I have seen a primer in the gas key stop up an AR. Link to comment Share on other sites More sharing options...
openclassterror Posted March 24, 2015 Share Posted March 24, 2015 I have seen a primer in the gas key stop up an AR. +1. Had this happen to a guy at an LE training class. Everybody was at a loss until somebody looked in the gas key. How it shot in there is anybody's guess, but the gas tube stuffed it all the way to the cross-hole. I wouldn't have believed the story if I hadn't seen it with my own eyes Link to comment Share on other sites More sharing options...
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