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Posted: 9/4/2011 5:16:22 PM EDT
locked her up tight as hell. After i got the uper and lower seperated. buffer retainer and spring fell out on table. Any ideas never had this happen before. This is my 3rd build dpms parts and spikes lower. I also noticed the hole for the retainer is now egg shaped. i hope lower isnt junk retainer and spring still fit in hole in reciver but kina sloppy. 
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Quoted:
Is this on a carbine build? If so you probably just did not have the buffer tube screwed in all the way. You don't actually even need it in there, it just makes it easier to open the two receivers. Mine was to far forward and actually broke the end off. I just left it out, you don't really need it. |
| Had this same issue with my buddies bushmaster. Buffer retainer popped out, so we screwed the buffer tube in 1 additional turn. But then, the upper receiver wouldnt close b/c it hit the buffer tube. One of my gunsmithing books noted that it is somewhat common and to just screw the buffer tube in far enough to hold the retainer, and then file (carefully) on the tube until it is flush with the lower. So my for .02, just buy a buffer tube from a more reputable mfgr. (daniel defense) They dont cost that much more than say... utg |
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If the problem is with the buffer retainer hole being drilled off spec, then high quality buffer tube makes no difference.
I had to go one extra turn, and then file the end of the buffer a little. No big deal ... actually helps me understand my AR a lot better when I have to work on it. |
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Quoted:
A2 stock but you guys were right tube had backed off. Im thinking about locktite on the tube so this doesn't happen again what say the hive. Also maybe some sleve retainer to take up the slop in the retainer hole ? Just a couple of ideas. Only go Blue Loc-Tite if you put some on, stay away from the Red stuff. That is very odd the buffer tube on a A2 stock backed off, never had one do that before. Are you positive it was screwed in all the way & everything else was snug before hand? |
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