AR Sponsor
Posted: 12/31/2008 5:32:01 AM EDT
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I'm looking to replace the stock on my fixed-stock Bushmaster AR-15. I've used AR-15's for years, but I've never ventured beyond field stripping.
If I want to replace this stock with a collapsible one (say, a Magpul MOE), do I also need to replace the buffer tube? What tools will I need to get? Sorry for the newbie questions, but as I stated, I've not gone down this road before. Picture of the AR in question: 
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Apologies for not directly answering the OP's question but...
Stock Related Q's: Is the M4 recoil spring and buffer shorter than *standard* length because the stock itself is shorter -or- because of a slight difference in recoil energy between a shorty bbl and a longer target bbl? Is the shorter M4 type spring made of a larger diameter spring steel to compensate for being *short*? Aside from looking a little odd, is there any reason *not* to put a collapsible stock on a rifle with a full length bbl? If all of these are non-issues, just tell me to get bent... 
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Seperate the upper from the lower.
Remove the buffer and spring. Using a flat blade screwdriver that fit the top screw (in-line with action/buffer tube), remove the screw. After removing the screw, slowly slide the stock off the buffer, watch for detent spting that retains take down pin, it will either stick out of the lower, or stick in the stock, this is why I prefer to lift the stock up away from lower. watch for the plastic spacer on end of buffer tube, it may stay in the stock, thats fine, just be sure you know where it is and there. Finally, you will unscrew the buffer tube from the lower, it may be snug, it may be rather tight, but it does unscrew from the lower, leftie loosie, rightie tightie.. when you go to unscrew the tube fro m the lower, the tube also holds the detent that retains buffer in the tube, get the tube loose first, then use thumb from 1 hand to retain the detent while unscrewing the tube from the lower.. Piece of cake. |
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