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Posted: 2/28/2010 5:05:10 PM EDT
| I purchased a Century Arms (I know, I know) about a year ago. I've shot it a few times here and there, but I pulled it out the other day to shoot. After one shot, I noticed it failed to eject the shell. So I grabbed the charging handle and pulled, and it was stuck to the point I had to remove the magazine and beat the charging handle back to remove the round from the chamber. I tried three more rounds before I threw it back in the case and headed home. Any suggestions?...besides throw it in the river? |
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Sounds most likely to be a gas problem. For some reason, there is not enough gas cycling through to cycle the bolt properaly.
It can be as simple as adjusting the gas regulator to close off some of the gas (a lower number on the regulator). Could be as bad as bad timing or a bad gas block. Might be somewhere in between. Check out theFalfiles for more details. |
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OK, gonna seem like an idiot but not sure about the grenade launch position. I doubt it's this but I'll come back to why I don't think so. The gas adjustment will turn all the way towards the action or all the way towards the business end, which way should I start when setting the gas plug adjustment? Towards the Action or the other way? Back to why I don't think it's this, it doesn't matter if I fire the round or not, if I simply chamber the round, the bolt will stick. Still possible for the gas plug to be the culprit...I feel really ignorant about this all. I'll check the gas piston. Thanks for the help so far guys, keep the suggestions rolling!
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i had that happen to me on a build i did. it was parkerizing process caused the chamber ot become rough. the brass expanded and would grip the bore and not eject and would require a mallet tapping the charging handle to budge the spent cartridge . How did you fix this? |
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Doesn't sound like a gas problem from your most recent description. Try to check it out without the dust cover in place to see if you can find where it is hanging up.
Don't hammer on the charging handle. FAL pogo: hold rifle vertically, muzzle up. Grasp charging handle and apply rearward pressure while "pogoing" the butt against a solidly located object (like the earth). |
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Quoted:
Doesn't sound like a gas problem from your most recent description. Try to check it out without the dust cover in place to see if you can find where it is hanging up. Don't hammer on the charging handle. FAL pogo: hold rifle vertically, muzzle up. Grasp charging handle and apply rearward pressure while "pogoing" the butt against a solidly located object (like the earth). I assume since there is a specific move called the "FAL Pogo" this is somewhat common? |
| If you had to beat the charging handle back to unlock then gas is definitely not the problem. Could be a chamber/headspace issue. Sounds as though your brass is swelled to the point it's impeding unlocking. I would suspect headspace or an oversized/dirty/rough chamber. A shortage of gas will not lock up your rifle. You could always go the simple route...clean, lube, and change ammo. |
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I assume since there is a specific move called the "FAL Pogo" this is somewhat common? It is common for FAL type rifles to jam fired cases in the chamber if the gas is set too low or turned off at the gas plug. A lot of folks have built these at home from used parts kits. If they then follow FN's directions for setting the gas (gas all the way open, fire one round at a time from the magazine, adding gas until the bolt locks open. Then add 2 more clicks.) the risk of the bolt short stroking and sticking is very high. Not a common problem with a well adjusted FAL-type. Has your rifle functioned properly in previous range sessions? Are there any marks on cases that have gotten stuck when you remove them? Is the bolt sticking with the mag in place? Without the mag? |
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If the bolt carrier is locking up, the gas doesn't have anything to do with it. Do you have a scope cover mounted? I mounted a DSA mount on my Para, and I had to file down the sides of the bolt carrier to make the bolt carrier cycle. I probably should have mentioned that...yes I do have a DSA Scope Cover mounted... I've wondered if that was maybe the cause, how much did you have to file off the sides? |
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If the bolt carrier is locking up, the gas doesn't have anything to do with it. Do you have a scope cover mounted? I mounted a DSA mount on my Para, and I had to file down the sides of the bolt carrier to make the bolt carrier cycle. I probably should have mentioned that...yes I do have a DSA Scope Cover mounted... I've wondered if that was maybe the cause, how much did you have to file off the sides? Provided you have the mount installed correctly, you can file off enough material to allow the bolt carrier to fall in and out of the receiver freely. Look at the wear marks on the sides and top of the bolt carrier, where the finish is coming off, file there. I used a bastard cut then a mill file to clean it up. |
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