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Posted: 12/13/2004 7:30:55 AM EDT
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I fully assembled my first AR and took it for its first firing yesterday, the gun fired, but would not cycle. I could pull the charging handle and extract the spent round, it would load another and I could then fire. I know the cycle of the AR-15 is accomplished with gas. It appears that the gas is not getting to the bolt/bolt carrier. This is educated speculation, but grease was being smeared out of the gas block in both directions, does this mean that for sure my gas block is too loose or is that normal? Originally, I called CLE because the gas block would not fit over the barrel, they said it should slide on freely and advised me to sand it until I could fit it on the barrel. I did so with 400 grit and although not free fitting, I did get it over the barrel and properly aligned and pinned with a somewhat snug fit. If it is the case that the gas block is too loose or leaking, how do I go about sealing it? If not and the smearing is normal, what else could be preventing the gas from cycling the weapon? Thanks in advance for your responses. |
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I'd say the gas is NOT making it into your gas tube. Sounds as if the gas block is not aligned properly or the gas tube hole itself is mis-aligned, (there is a top and bottom to the gas tube). The fact the grease is oozing out indicates mis-alignment in either the gas-block or the gas tube. Remove it all and re-install after you have identified the culprit. Mike |
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first thing to check is if the gas key is fitting over the tube and if the key is tight. (since it's going into battery and firing, it's probably ok) Next, make sure you put your gas tube in with the hole facing down. If you're getting grease blown out the front and back of the block, that's probably where your problem lies. Easy way to check if your tube is clogged or gas block isn't lined up with the port is to shoot some CLP down the tube. You'll see it drip into the bore through the gas port if everything is lined up. |
This is the part I'm not understanding. Do you mean the gas block, instead of the gas tube? |
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CLE said it should move freely. It is far from freely, what I would like to call a snug fit, so I don't suspect that it is the problem. However, I do not claim to be an expert, that is just what CLE told me. If I reinstall the gas tube and check for clogs and allignment, and still experience problems that may be something to look @. I appreciate your input. |
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