AR Sponsor
Posted: 12/16/2009 7:55:27 AM EDT
| Well I received my GG&G upper yesterday and installed it on my DPMS lower reciever. I wanted to change out the 4 position stock for a ACE Skeleton Stock I bought. I contacted DPMS a while back and they said that they use locktite on the castle nut and I should use a heat gun or a small butane torch to heat up the locktite. I did-it didn't work. I used the butane torch and heated the whole castle nut and used a heavy duty DPMS wrench to try and loosen the nut. What can I do next? I broke my first $5.00 wrench, I'm about tired of fooling with it. |
|
Where did you get the lower receiver assembly?
That dealer or previous owner may know what they used to secure the nut if it's a kit lower ("K" in the serial number). Once you know what was used, you can usually find out what you need to remove it. DPMS only uses blue locktite (I honestly don't think we even have red locktite in the building), which will burn off relatively easily from the torch or heat gun. You will need to heat it until you see a puff of smoke. that puff is the locktite burning out. Once you see it, the tube should come off pretty easily. |
I had this problem also. use a propane torchand get it good and hot. i had to put the wrench on it & hit it with a hammer. the pics are gone, but it will move, and once it does it is good to go! clean off the loctite & when you go back together, stake the nut. here is where i asked to make sure before i broke somthing, the pics dosnt work anymore. sorry.
http://www.ar15.com/forums/topic.html?b=3&f=4&t=426386 |
|
Ditto with DPMS,
With the lower in one hand, work the flame towards the castle nut/tube (away from the receiver) until you get a sweet smell telling you that the lock tight bond had broken. The heat from such when the loctite bond breaks down will transfer to the receiver threads, breaking the bond there as well. And no, you do not need to get either the nut or tube glowing red, you just need to work the flame around the whole nut to evenly transfer the heat (600* is loctite bond breaking point). |
AR Sponsor