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Posted: 4/6/2014 8:36:19 AM EDT
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The BCG on my 7.5" pistol "sticks" when I pull back the charging handle. If I jolt the gun the bolt slams home. The charging handle can moves freely, so I know it's not that. Almost feels like friction between the spring and buffer. Don't know if the spring or BCG is sticking inside the buffer tube or if BCG is catching somewhere else. No issues when firing though.
Anyone have this issue or know what it could be? |
| First thing, make sure the extension tube is concentric to the lower. If so, separate the upper from the lower and use a wooden dowel or something similar to push the buffer in to test for binding. Also, do you have an extended bolt release installed? If all this checks out, post your results and we can troubleshoot from there. |
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Quoted:
Same thing happened to me on my last pistol build. To fix my problem I polished my bolt with a dremel, cleaned and lubed everything. Next I manually worked the action a few hundred times and its now like butter! 
Not to be a jerk, but a Dremel should be the last thing touching a firearm. Cleaning and lubing should have been the start and end of it. Unless it's physically binding somewhere, shooting just a hundred rounds will smooth a new action up. |
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Quoted:
Gentlemen, thank you for your replies and interest. It looks like my bolt is rubbing against the buffer retention pin. My thought is to polish the groove on the bottom of the BCG with the hope it will act more slippery. What do you think? I think that's almost certainly not the prob. How much have you shot it? Probably just need to shoot it more. Keep bolt through the two holes and outside carrier good and wet first couple hundred rounds. - OS |
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