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Posted: 3/30/2009 8:56:24 AM EDT
| I understand that when installing a carbine buffer tube, there is a castle nut that secures it to the receiver. My question is how does a rifle buffer tube secure to the receiver other than just screwing in, does it have something to do with he stock itself? I plan on installing a rifle tube and a Magpul PRS, and want to make sure I have all the parts needed. Should I use loctite when I install the tube? |
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The way the rifle receiver extension is designed you don't have to worry about that, just depress the buffer retainer and screw in the extension. The collar at the base of the threads is spaced accordingly so it just has to be screwed tight. There is a required torque spec(I'm sure someone will post it) that your supposed to use but I just put it hand tight and gave it a good wrenching with the stock tool.
Once that's on, just slide on the A1 or A2(with spacer) stock and tighten the stock screw. Make sure you use the correct size screw or you'll run into buffer clearance problems. A1 = Short screw A2 = Long screw (to accommodate the spacer) Here are some visual aids... Extension screwed in tight 
Extension holding the buffer retainer in 
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