Jump to content

Problem Installing M4 Collapsible Stock


Recommended Posts

I am trying to install the 70085 collapsible stock on my M4 (11713).  The recoil spring tube is cut for three positions.  The pistol grip went on fine.  However when I try to put the stock on it won't rotate to the right.  I have tried to follow the Rat Worx video on YouTube (https://www.youtube.com/watch?v=lpkKyPwHxNI), at the 1:30 mark.  However, I can't get it to turn to the right after sliding it on at the 45 degree angle.  It appears to me that the stock is not initially sliding far enough onto the recoil spring tube, but I'm not sure.  When I get it as far as it will go and try to turn to the right it binds and I can't turn it.  Any ideas or suggestions?  The limited number of videos I've seen about installing this there doesn't seem to be any issues sliding this on and turning it, so I feel that there is something wrong with the stock (or possibly the tube)?  Any ideas?

The photo is looking into the stock tube.  The retainer that retracts when the button is depressed is on the top (it looks slightly off center in the slot to me, but I don't know if that would cause installation problems).  The retainer on the right does not retract.



Link to comment
Share on other sites

All I can tell you is that it is very finickyand precisley one spot that it will turn. Once you get it on, finding the middle position will be difficult also. I would suggest that you move it in millimeters back and forth with some pressure in the direction you want it to turn. Good Luck.


Edited by AustinMc
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...