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Posted: 4/16/2015 8:42:30 AM EDT
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New to AR's and have problem with the Buffer Pin and Spring popping out into trigger assembly area causing a jam. Checked all other pins and springs. Also when this happens the springs get bent.
All help appreciated. This is happening on my Windham Weaponry HBC AR-15. |
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Quoted:
New to AR's and have problem with the Buffer Pin and Spring popping out into trigger assembly area causing a jam. Checked all other pins and springs. Also when this happens the springs get bent. All help appreciated. This is happening on my Windham Weaponry HBC AR-15. Sometimes the bore where the detent and spring live is drilled in the wrong place. By design, the carrier is supposed to hold the buffer back and away from the detent/spring. If the detent bore is out of spec, it can let the buffer slam into the detent during normal operation of the rifle. The detent is there to only hold the buffer back when the upper is shotgunned open. Sounds like your upper may be out of spec. |
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Sometimes the bore where the detent and spring live is drilled in the wrong place. By design, the carrier is supposed to hold the buffer back and away from the detent/spring. If the detent bore is out of spec, it can let the buffer slam into the detent during normal operation of the rifle. The detent is there to only hold the buffer back when the upper is shotgunned open. Sounds like your upper may be out of spec. Quoted:
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New to AR's and have problem with the Buffer Pin and Spring popping out into trigger assembly area causing a jam. Checked all other pins and springs. Also when this happens the springs get bent. All help appreciated. This is happening on my Windham Weaponry HBC AR-15. Sometimes the bore where the detent and spring live is drilled in the wrong place. By design, the carrier is supposed to hold the buffer back and away from the detent/spring. If the detent bore is out of spec, it can let the buffer slam into the detent during normal operation of the rifle. The detent is there to only hold the buffer back when the upper is shotgunned open. Sounds like your upper may be out of spec. How on earth could you POSSIBLY come to this conclusion? First, the detent bore is in the lower, not the upper. An upper has nothing to do with this. Second, the MOST common issue is the receiver extension is not screwed in enough, or it does not have enough of a lip extending on the bottom to cover the buffer detent. That is FAR more common than some hole drilled in the wrong spot in the LOWER. |
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How on earth could you POSSIBLY come to this conclusion? First, the detent bore is in the lower, not the upper. An upper has nothing to do with this. Second, the MOST common issue is the receiver extension is not screwed in enough, or it does not have enough of a lip extending on the bottom to cover the buffer detent. That is FAR more common than some hole drilled in the wrong spot in the LOWER. Quoted:
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New to AR's and have problem with the Buffer Pin and Spring popping out into trigger assembly area causing a jam. Checked all other pins and springs. Also when this happens the springs get bent. All help appreciated. This is happening on my Windham Weaponry HBC AR-15. Sometimes the bore where the detent and spring live is drilled in the wrong place. By design, the carrier is supposed to hold the buffer back and away from the detent/spring. If the detent bore is out of spec, it can let the buffer slam into the detent during normal operation of the rifle. The detent is there to only hold the buffer back when the upper is shotgunned open. Sounds like your upper may be out of spec. How on earth could you POSSIBLY come to this conclusion? First, the detent bore is in the lower, not the upper. An upper has nothing to do with this. Second, the MOST common issue is the receiver extension is not screwed in enough, or it does not have enough of a lip extending on the bottom to cover the buffer detent. That is FAR more common than some hole drilled in the wrong spot in the LOWER. 1) Check for proper capture of the detent by the leading edge of the tube 2) The above won't help if the spring bore location is off. THIS HAS HAPPENED BEFORE AND THIS IS HOW I COULD COME TO THIS CONCLUSION 3) The reason for the retainer is to retain the buffer/spring only when the upper is shotgunned open. THAT IS WHAT IT HAS TO DO WITH THE UPPER The rifle can be run without the retainer, otherwise. |
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1) Check for proper capture of the detent by the leading edge of the tube 2) The above won't help if the spring bore location is off. THIS HAS HAPPENED BEFORE AND THIS IS HOW I COULD COME TO THIS CONCLUSION 3) The reason for the retainer is to retain the buffer/spring only when the upper is shotgunned open. THAT IS WHAT IT HAS TO DO WITH THE UPPER The rifle can be run without the retainer, otherwise. Quoted:
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New to AR's and have problem with the Buffer Pin and Spring popping out into trigger assembly area causing a jam. Checked all other pins and springs. Also when this happens the springs get bent. All help appreciated. This is happening on my Windham Weaponry HBC AR-15. Sometimes the bore where the detent and spring live is drilled in the wrong place. By design, the carrier is supposed to hold the buffer back and away from the detent/spring. If the detent bore is out of spec, it can let the buffer slam into the detent during normal operation of the rifle. The detent is there to only hold the buffer back when the upper is shotgunned open. Sounds like your upper may be out of spec. How on earth could you POSSIBLY come to this conclusion? First, the detent bore is in the lower, not the upper. An upper has nothing to do with this. Second, the MOST common issue is the receiver extension is not screwed in enough, or it does not have enough of a lip extending on the bottom to cover the buffer detent. That is FAR more common than some hole drilled in the wrong spot in the LOWER. 1) Check for proper capture of the detent by the leading edge of the tube 2) The above won't help if the spring bore location is off. THIS HAS HAPPENED BEFORE AND THIS IS HOW I COULD COME TO THIS CONCLUSION 3) The reason for the retainer is to retain the buffer/spring only when the upper is shotgunned open. THAT IS WHAT IT HAS TO DO WITH THE UPPER The rifle can be run without the retainer, otherwise. Since you are defending your position, please explain how you came to the conclusion that his upper is out of spec ? |
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Since you are defending your position, please explain how you came to the conclusion that his upper is out of spec ? Quoted:
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New to AR's and have problem with the Buffer Pin and Spring popping out into trigger assembly area causing a jam. Checked all other pins and springs. Also when this happens the springs get bent. All help appreciated. This is happening on my Windham Weaponry HBC AR-15. Sometimes the bore where the detent and spring live is drilled in the wrong place. By design, the carrier is supposed to hold the buffer back and away from the detent/spring. If the detent bore is out of spec, it can let the buffer slam into the detent during normal operation of the rifle. The detent is there to only hold the buffer back when the upper is shotgunned open. Sounds like your upper may be out of spec. How on earth could you POSSIBLY come to this conclusion? First, the detent bore is in the lower, not the upper. An upper has nothing to do with this. Second, the MOST common issue is the receiver extension is not screwed in enough, or it does not have enough of a lip extending on the bottom to cover the buffer detent. That is FAR more common than some hole drilled in the wrong spot in the LOWER. 1) Check for proper capture of the detent by the leading edge of the tube 2) The above won't help if the spring bore location is off. THIS HAS HAPPENED BEFORE AND THIS IS HOW I COULD COME TO THIS CONCLUSION 3) The reason for the retainer is to retain the buffer/spring only when the upper is shotgunned open. THAT IS WHAT IT HAS TO DO WITH THE UPPER The rifle can be run without the retainer, otherwise. Since you are defending your position, please explain how you came to the conclusion that his upper is out of spec ? Never said the upper was out of spec, unless there was a typo. So while I have you by the scruff of the neck, let's go through the possibilities just for fun... 1) Assembly issue...receiver extension (buffer tube) is not screwed into the receiver far enough to capture buffer retainer. 2) Receiver extension when indexed properly will either not capture buffer retainer or will bind buffer retainer (receiver extension out of spec) 3) Buffer retainer bore is too far aft, negating the protection of the carrier tail. (retainer bore out of spec) 4) Carrier is out of spec and too short to hold buffer away from retainer (not common, but possible). So, that's about it. If there's something I missed, add it to the list. |
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Quoted:
New to AR's and have problem with the Buffer Pin and Spring popping out into trigger assembly area causing a jam. Checked all other pins and springs. Also when this happens the springs get bent. All help appreciated. This is happening on my Windham Weaponry HBC AR-15. Without picture, there is going to be a lot of speculation, that may, or may not be useful. |
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Real easy to see if the buffer retainer pin channel is the lower receiver was located correctly.
With the butt stock tube installed correctly, the front of it should be kissing the center pin of the retainer. Also to note here, on some tubes, the end of bottom of the tube has to be faced back so the tube can be threaded into the receiver another wind if when the tube is first installed, and the end of the tube either is too far back off the center of pin when the tube is indexed for the butt stock, and the tube can not be threaded into the receiver another wind without binding into the center pin of the retainer. 
If the buffer tube was installed correctly, then there should be no peen marks on the edge of the buffer face from it crashing into the pin during system. Marks on the buffer face from the buffer channel being milled too far back, 
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