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Posted: 4/26/2013 9:16:49 PM EDT
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I've got an Aero precision lower/upper that I built myself, and my BCG gets always stuck with a live round in the chamber when I'm trying to feed.
I have to smash the rifle into de ground while pulling the charging handle to eject that round. I'm using 30 rd windowed magpies is it the ammo? any suggestions? Thank you! |
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I've got an Aero precision lower/upper that I built myself, and my BCG gets always stuck with a live round in the chamber when I'm trying to feed. I have to smash the rifle into de ground while pulling the charging handle to eject that round. I'm using 30 rd windowed magpies is it the ammo? any suggestions? Thank you! I'm sure someone with actual knowledge will chime in, but perhaps a photo of the chamber is in order? I am thinking there is an obstruction or burr somewhere that is grabbing the bolt hard... |
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Working at a range, the following problem was caused by; Dirty ass dry gun Shitty ammo combo of the two Normally I would run lube out, douche the BCG, and the problem would almost always magically go away. If I didn't, I'd sell the people known quality factory ammo, and it would. I never once ran into the problem being the gun itself. |
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it's a 5.56 with M4 feed ramps, I already tried pushing the forward assist but nothing.
I haven't shot it yet tough here are some pictures http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00009_zpsdac5694a.jpg http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00010_zps72076f27.jpg http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00011_zps45830848.jpg |
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Going to need to to carefully mortar that stuck round out, shotgun the upper and get pics inside that chamber. That is a quality BCG you are using there, I have my doubts it is there... and aero is no POS by any stretch of the imagination. But mistakes do happen.
Then you need to finish screwing that magpul trigger guard screw in when you find an Allen key small enough. |
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Have you pulled the cam pin to make sure it's not broken?
Or hopefully you didn't try chambering it with the firing pin removed. It's a noob mistake, but with the firing pin removed there's nothing to limit the cam pin's roatation, which slams the bolt home without it rotating which can jam the lugs in the barrel exension. |
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Going to need to to carefully mortar that stuck round out, shotgun the upper and get pics inside that chamber. That is a quality BCG you are using there, I have my doubts it is there... and aero is no POS by any stretch of the imagination. But mistakes do happen. Then you need to finish screwing that magpul trigger guard screw in when you find an Allen key small enough. I have been looking for the right size allen key.. I did what you told me and this are the best pictures that I could come up with http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00022_zpsb9c4da11.jpg http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00020_zps5203762b.jpg http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00017_zps5d47db54.jpg http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00016_zps5454b51a.jpg http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00012_zps5f8e4342.jpg http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00013_zpsa87dd665.jpg |
| The ammo is some cheap ass bag of 100 that I bought on the internet.. I currently don't have any other ammo to try it out and my range will be closed for a few weeks for remodel, so unless there is something wrong with my chamber I guess the ammo is going to be the primary suspect. |
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what kind of barrel? If you drop a round into the chamber, will it slide forward into position, then fall out by just gravity? Is there any problem cycling the bolt with no ammo in the rifle? it slides forward and falls with gravity the barrel is a 18" joebob's government profile with M4 feed ramps The bolt cycles perfectly when there is no round in the chamber Thank you for your reply |
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Have you thoroughly cleaned the chamber with a bore brush? You don't clean the chamber with a bore brush... http://www.cactustactical.com/osc/images/yhm-1025.jpg You have to use a chamber brush https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcTudrQr6u2j9pleIi80IMKIhAjV3q0NLtHfjj9Rp-KViS36HkhvJw Yeah...it's late...I meant a chamber brush... 
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Have you thoroughly cleaned the chamber with a bore brush? You don't clean the chamber with a bore brush... http://www.cactustactical.com/osc/images/yhm-1025.jpg You have to use a chamber brush https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcTudrQr6u2j9pleIi80IMKIhAjV3q0NLtHfjj9Rp-KViS36HkhvJw Yeah...it's late...I meant a chamber brush... I haven't done that actually, since it's never been shot I thought it was unnecessary I'll try doing that |
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That looks like gouging on the lugs from the bolt having not rotated when attempting to go into battery.
I don't mean any offense by asking again, but is the firing pin in the gun? If so, can you post a picture of your cam pin? If that's not the case and it locks up fine with out a round attempting to seat, it would have to be the chamber. |
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Have to you tried separating your upper from the lower, removing the charging handle and bcg; then take a round and drop it into the chamber. Afterwards point the muzzle towards the ceiling to see if the round will easily drop out of the chamber?
Edit: My question was already asked while I was typing it. Disregard. |
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Quoted: The ammo is some cheap ass bag of 100 that I bought on the internet.. I currently don't have any other ammo to try it out and my range will be closed for a few weeks for remodel, so unless there is something wrong with my chamber I guess the ammo is going to be the primary suspect. "No shit" Ammo is always the first thing to look at. Always. You can try to look for gremlins all you want... But unless you try known quality ammo first, it'll just be waste of time. Until you can go get good ammo, buy snap caps and try again. I bet you'll see a difference. Everyone is trying to diagnose problems that are probably not there.  -ETA I realize this comes across as dickish, but as an RSO I've seen SOOOOOO many people blame the gun instead of ammo it's ridiculous. Same thing with lack of lubrication. |
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it's a 5.56 with M4 feed ramps, I already tried pushing the forward assist but nothing. I haven't shot it yet tough here are some pictures http://http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00009_zpsdac5694a.jpg http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00010_zps72076f27.jpg http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00011_zps45830848.jpg In your first picture, why isn't your bolt not locked in battery? You should not be able to see the bolt from the ejection port when it rotates to lock into the rifle extension. |
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The ammo is some cheap ass bag of 100 that I bought on the internet.. I currently don't have any other ammo to try it out and my range will be closed for a few weeks for remodel, so unless there is something wrong with my chamber I guess the ammo is going to be the primary suspect. "No shit" Ammo is always the first thing to look at. Always. You can try to look for gremlins all you want... But unless you try known quality ammo first, it'll just be waste of time. Until you can go get good ammo, buy snap caps and try again. I bet you'll see a difference. Everyone is trying to diagnose problems that are probably not there.
-ETA I realize this comes across as dickish, but as an RSO I've seen SOOOOOO many people blame the gun instead of ammo it's ridiculous. Same thing with lack of lubrication. I'm going to go with your answer, since I'm new to the AR platform and I have always shot handguns, (they don't give a crap about the ammo I feed them) I thought the AR would be the same.. I guess I'm gonna have to be more selective with the rounds I feed to this bad boy |
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it's a 5.56 with M4 feed ramps, I already tried pushing the forward assist but nothing. I haven't shot it yet tough here are some pictures http://http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00009_zpsdac5694a.jpg http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00010_zps72076f27.jpg http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00011_zps45830848.jpg In your first picture, why isn't your bolt not locked in battery? You should not be able to see the bolt from the ejection port when it rotates to lock into the rifle extension. That was the picture while it had a round stuck in the chamber, it didn't move forward or backward.. I had to smash it butt down to get it out. |
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it's a 5.56 with M4 feed ramps, I already tried pushing the forward assist but nothing. I haven't shot it yet tough here are some pictures http://http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00009_zpsdac5694a.jpg http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00010_zps72076f27.jpg http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00011_zps45830848.jpg In your first picture, why isn't your bolt not locked in battery? You should not be able to see the bolt from the ejection port when it rotates to lock into the rifle extension. My thoughts as well. That's why I'm looking more towards trying to chamber the rifle with the firing pin out, or a broken cam pin. You can see the marks on the chamber extension from the bolt not rotating and slamming into it. |
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Quoted: Quoted: snip I'm going to go with your answer, since I'm new to the AR platform and I have always shot handguns, (they don't give a crap about the ammo I feed them) I thought the AR would be the same.. I guess I'm gonna have to be more selective with the rounds I feed to this bad boy Yup. FWIW even handguns can get locked up from bad ammo, though it's normally fired cases not extracting. I've had cases like yours, bad ammo, lock up guns so bad I had to rubber mallet the forward assist to close the chamber enough to pop the take down pins, and then pry the carrier and bolt apart to unlock the gun, then punch out the case with a rod (in that case, it was a fired round that the empty case would not extract). Every time I extracted rounds that locked up guns, I'd grab the 5.56 chamber gauge from our reloading area, and the cases would fail. |
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it's a 5.56 with M4 feed ramps, I already tried pushing the forward assist but nothing. I haven't shot it yet tough here are some pictures http://http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00009_zpsdac5694a.jpg http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00010_zps72076f27.jpg http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00011_zps45830848.jpg In your first picture, why isn't your bolt not locked in battery? You should not be able to see the bolt from the ejection port when it rotates to lock into the rifle extension. My thoughts as well. That's why I'm looking more towards trying to chamber the rifle with the firing pin out, or a broken cam pin. You can see the marks on the chamber extension from the bolt not rotating and slamming into it. http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00026_zps626d34d0.jpg http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00024_zps0a7ca875.jpg http://i1314.photobucket.com/albums/t566/Luis_Stark/DSC00023_zpse3e63a22.jpg |
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OP, glad you got it figured out.
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Holy shit, you have a pretty fucking cool neighbor if you can wake him up at this hour, and borrow TAP to function check your action! No joke. If you wake me up at 4 am on Saturday, it better be to help you get rid of a body. |
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OP, glad you got it figured out. Quoted:
Holy shit, you have a pretty fucking cool neighbor if you can wake him up at this hour, and borrow TAP to function check your action! No joke. If you wake me up at 4 am on Saturday, it better be to help you get rid of a body. If my neighbor woke me up at 4am...it's cause that sum bitch was axing me to death... |
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