AR15 stock comes loose?


January 22, 2008, 09:12 PM
Hey all,

I have a Bushmaster XM15 with one of those faux collapsible stocks. :barf: Basically it looks like your standard 6 postition collapsible stock, but it has been manufactured to stay in the out position.

The entire stock itself came loose and rotated about 1/4 of a turn. I tightened up the locking nut, but I dont have AR stock wrench.

Is this rotation going to be a continuing problem? How can I go about making sure it will stay put without resorting to loc-tite or some other compound?

Also, will this effect the weapon's operation at all. Im just plain not sure about any of this.

Any help would be much appreciated.

Thank you.

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January 22, 2008, 09:14 PM
It will continue to be a problem.

Use Blue Locktite to lock it in, and you'll be just fine.

If it turns enough to let the pin shoot up, you'll have to field strip the rifle to fix it...a major PITA.

January 22, 2008, 09:14 PM
Once you get a wrench and tighten it, stake it.

January 22, 2008, 09:27 PM
yeah, the fundamental problem there is lack of staking. since you're in NJ, not sure if you can go ahead and put a collapsible stock on there while you're screwing with it or not, but you should if you can.

alternately, a fixed stock in the collapsed position would be preferable to one fully extended

January 22, 2008, 09:42 PM
Thanks guys.

Im going to go ahead and stake it.

But before I do so. How many indents should I make. I have three spots to choose from.

If I choose to apply loc-tite. Where would it go?

Thanks again!

Bartholomew Roberts
January 22, 2008, 09:57 PM
Check the retaining ring first. Manufacturers will sometimes use a cheaper, more brittle metal for that part that can crack when staked.

January 22, 2008, 09:57 PM
loc-tite ????light aplication on the threads then turn the lock-nut back into place do not overtighten

January 22, 2008, 10:31 PM
Had the same problem. Check the back of your reciever for damage. The aluminum on mine rounded out, and stock plates don't work so hot now. The tab that rides in the slot in the tube is also damaged. I switched to a Vltor sling plate and it fits the rear of the reciever better.

Also the proper way to secure the nut is to stake it.

January 22, 2008, 10:55 PM
Don't be afraid to use a little bit of blue loctite. I haven't had any issues with my stock with the use of a wrench. First, check for failures in the two mating surfaces. If all is okay, throw a wrench in your shopping cart next time you are online buying some goodies. Comes in very handy.

January 23, 2008, 06:04 PM
I thank you guys for your input. Always helpful!!!

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