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Posted: 12/25/2005 11:42:27 AM EDT
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Hi there guys i need your help please. I have an m4 carbine and have just started cleaning the gun and found this problem. When i open the upper , the spring from the collapsable stock shot out at me. This is the buffer and spring. It seems that the little pin on the part thats supposed to keep the buffer and spring in has come loose and so has the spring it sits on. What i want to know is how can this happen? How can i fix it ? I am scared to shoot the weapon now as if the spring is pushed back then it will not that pin out again with its own spring. Normally you can push the srping down and let the buffer and spring out and then it jumps into position again without actually coming out of its hole. Please can some of the experts here help me ? Thanks Craig |
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Ok i am screwed. It seems that the stock piece that screws into the lower is stripped some how and thats the problem , it cannot go far enough forward to sit on the pin properly and therefore when i cock the wapon, it pushes the pin right out. any suggestions ? the actual thread is stripped on the part of the stock. |
this is the timing lip you might be able to cut yours to correct the lack of a lip  you might have enough play in your tube to be able to screw it in one more revolution, just make sure the top of the tube doesn't stick far enough into the lower to obstruct the upper receiver. |
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Tweak thanks so much man. Holy crap there is a whole piece missing. I think i will just have to try and find a new one or order one. Do you know if anyone will ship to South Africa? Most places i hace tried will not. Thanks again, I really appreciate the help. Craig SA Police |
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The wierdest thing is that its been fine for months and then all of a sudden this happens. Cannot understand where the lip has gone. This is like the twighlight zone. This stupid country does not even have spares for this kind of thing. There are very few guns like this in South Africa. |
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This has the 50 round magazin in it now but i have 30 round ones as well. http://i13.photobucket.com/albums/a293/craigsa/40.jpg http://i13.photobucket.com/albums/a293/craigsa/41.jpg |
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Just had to upload the right pic : http://i13.photobucket.com/albums/a293/craigsa/dsc009709io640x480.jpg |
LOL yeah thanks someone here already showed me that, its an old pic from September. h.gif |
Ah, IC, not stripped as in cross threaded but stripped because when you pulled the receiver plate you spun it around the threads instead of keeping the key in its slot along the bottom of the tube. You should be able to remove the stock. If you clean up the worst of the layed over threads you can screw the tube in one more revolution. the correct method is to loosen the nut as far back as it will go and then pull the receiver plate fully to the rear, then unscrew the tube, prevents bending your takedown pin detent spring too. |
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been asking for ya ar15.com/forums/topic.html?b=7&f=125&t=228899&page=2 ar15.com/forums/topic.html?b=2&f=138&t=149209 whuile you're in picture taking mode care to snap one of the roll marks on the lower? I think there is only one Norinco in the markings thread ar15.com/forums/topic.html?b=3&f=12&t=223495 |
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Tweak thanks again for your help. It really helps. I can with ease remove the stock but i cannot make one more turn to tighten it. It is impossible. So tight. I definitely need a new tube. Damn this is going to be a problem. You guys are so lucky you live in the USA. By the way my tube has only got 3 settings. http://i13.photobucket.com/albums/a293/craigsa/3345.jpg http://i13.photobucket.com/albums/a293/craigsa/22guns.jpg http://i13.photobucket.com/albums/a293/craigsa/2guns.jpg |
| The rifle will function just fine without the buffer retainer/spring (just makes it a bit of a pain to field strip, as mentioned by another). However, I would remove the buffer retainer and its spring entirely to avoid the risk of it falling free and jamming in the firec control group. |
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But hold on guys maybe i am not understanding how the gun functions. When i cock the weapon , the bolt comes back and pushes the spring back into the tube in the stock. Correct ? Now if this is correct then when this occurs , and you let the bolt come forward after cocking the weapon, then the spring and the plate that keeps the spring in place jump out of the tube as it has no pin to stop it as the pin has no tube lip to keep it there. How would the weapon work without these pieces. Sorry if i sound stupid but i dont see how the bolt can then move back and forward without tension from the spring in the tube. Thanks again. Craig By the way i just took out the spring and cylinder from the tube of the stock and it does not cock now, the bolt just sits there and does not move forward. |
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we're talking about the rifle functioning without the buffer detent and buffer detent spring not the buffer spring and buffer. The part you circled in yellow is the buffer detent. You can remove parts #4 and 5 shown here  the buffer detent is only in contact with the face of the buffer when the rifle is opened, when the rifle is shut the back of the carrier is in contact with the face of the buffer. |
OUCH! Thats YOUR Country your talking about.  Is Chi-Com all thats available to you in AR style? |
Don't get me wrong but it has become almost impossible to own semi-auto rifles in SA. This gvt does not believe in legal gun ownership however if you want an illegal AK or other gun then its ok. (Sarcasm) Anyway you guys do not know how lucky you are to have a constitution that guarantees you the right to own a firearm. I am more patriotic about USA then i am about my own country. To find an original Colt receiver is very difficult. |
Craig, Did you remove and reinstall the receiver plate on the tube? It's backwards in that picture, the nipple on the bottom engages the dimple in the rear of the receiver. ignore the red arrows 
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RSAPD, Get ahold of Dave Sheer in Pretoria. If a tube is needed, he has the capacity to machine one, or get one. Mind the gates and the dogs. He's good people, and worth the initial distractions, that are too common these days. We are spoiled here in the USA. But we share a common enemy, as always. Bie Dankie! S-28 |
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