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Posted: 9/10/2012 3:07:57 PM EDT
| Doing my first AR build. I have a Troy low pro gas block and putting it on a AR-Stoner .223 Wylde barrel. Both sized for the .750. I can only get the gas block about of the 1/4 of the way on to the area which it needs to sit. I don't want beat in on with a hammer or plastic mallet unless I have to. Are these always super tight? I was thinking of leaving the barrel in the freezer for a while and heating up the gas block with a heat gun and see if I can tap it on. Has anyone tried that? Any ideas or help would be great? Thanks |
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I had the same problem with a palmatto low pro gas block on my whtie oak 18" SPR.
I came up with a little trick for fixing the size. Find a socket that fits the size of the inner diameter of the block with just a millimeter of room to spare, take some fairly light sand paper (maybe 900 grit) and tape it to the outside of the socket, work it into the gas block spinning it in complete circles. Keep working it until it fits down your barely nice and snug to where it needs to be. I did this for mine, worked great, never had a short stroke or anything shot near a thousand rounds now and never had a failure to eject or feed or anything. |
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Quoted:
Doing my first AR build. I have a Troy low pro gas block and putting it on a AR-Stoner .223 Wylde barrel. Both sized for the .750. I can only get the gas block about of the 1/4 of the way on to the area which it needs to sit. I don't want beat in on with a hammer or plastic mallet unless I have to. Are these always super tight? I was thinking of leaving the barrel in the freezer for a while and heating up the gas block with a heat gun and see if I can tap it on. Has anyone tried that? Any ideas or help would be great? Thanks I just went through the same thing with my first build. The finishes of the metal surfaces were rough and the gas block wouldn't slide on without a rubber mallet. I just found a wooden dowel, wrapped some duct tape around it until it was almost the diameter of the barrel. Then I used some fairly fine sandpaper and wrapped it around the dowel/duct tape. You just want to smooth out the inside of the gas block. I very lightly buffed the barrel as well just to smooth things out, and after that, it fit like a glove. You still want it to be snug, so don't go crazy with the sand paper. |
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I'm having the exact same issue with my Troy low pro gas block right now.
I'm going to try the light sanding method- just feeling around inside the block, it feels as if there may be a slight taper at each end- completely unscientific, but I will confirm by measurement before I get to sanding. |
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