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Posted: 3/3/2009 7:19:17 PM EDT
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Guys, I need some help ......
One of my sons installed an ACE SOCOM stock into a RRA lower and the damn thing WILL NOT tighten the last 1/8"! I asked him if he cross-threaded the stock putting it in, and he said that he didn't - he's over 21 and very mechanically inclined, so I believe him I CANNOT get the damn stock to budge - either tighten or loosen! I thought that maybe applying some heat (read propane torch) to the lower (re-inforced buffer extension mount) might help - I tried, but no luck. Should I chuck it in a vice at the re-inforced ring, and use a big stick in the SOCOM handle to apply some leverage? Any other ideas? Thanks in advance! |
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GOT IT!
Used an old rifle stock for leverage and was able to remove the SOCOM stock without damage Tried a std milspec CAR tube, and was able to thread in all the way by hand, although it was TIGHT No crossed threads on the stock extension or in the receiver - I think that this is just a case of the notorius tight tolerences on some RRA receivers. Anyone know the correct tap size for re-cutting the buffer extension threads in the receiver? I have a feeling that if I run a tab through the threads again it will provide enough clearance to properly install the SOCOM stock |
Just my 2c, but dont know if I'd do that. Even with the correct thread size tap, there are several GH sizes within a specific thread pitch. Think I'd go with some lube and try a tube back and forth several times until I was happy. 
ETA: Thread size is 1 3/16 - 16 UN 3-B special, minor of 1.1212 - 1.1291. Check out biggerhammer.net for the CAD prints. 
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Would work, but I'm guessing as you wear through the anodize, it just might be enough at that point. Better to go slow ( too little ) than too much. RRA's is indeed known for their tight fit, but the Ace tube may be playing into it as well. Lap a little, check. Rinse and repeat.
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