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Posted: 2/21/2007 3:08:59 PM EDT
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My father recently purchased a DPMS AP4. We're replacing the stock soon and I was wondering if the buffer and spring will fit in a standard mil-spec tube. Also, is a mil-spec tube going to fit the threads of the lower? I noticed while trying to slip my Vlto Clubfoot on it that the stock buffer tube is slighty thicker than mil-spec and would not accept the Vltor. Thanks |
| the buffer and spring are fine, as long as you use the proper ones. meaning rifle in rifle and carbine in carbine. any extension should fit the receiver. as far as which stock will fit on which tube, milspec or commercial, check with manuf of the stock if unsure. |
The .308 spring is much more robust than the .223 spring. The .223 spring will not work. I tried it. The .308 buffer is longer and heavier than the carbine buffer. I think it is shorter than a standard .223 buffer. The buffer tubes for .223 and .308 are the same. Also, be prepared to cut the old 6 position castle nut off, it is staked on and there is not a cheater bar long enough and a wrnech strong enough to overcome its fury. I tried it. Just call DPMS and say, I wanna make my .308 a standard length stock, I need the standard length buffer tube and buffer. And just get any old standard length tube. |
Are you referencing the lock nut that holds the stock on? That castle nut? I had no problem taking mine off. Or are you referencing another castle nut? In the morning I will post pictures of the carbine and rifle buffers/springs. -TS |
Yes Tite, I/we replaced 2 of those stocks and both were staked on, I'm very jealous you had such an easy time!!!!!! |
Do you by chance have pictures of the staked nuts? I have worked on almost 2 dozen different AP4's and never a single one was staked, I even spoke to DPMS and they said they don't stake them. Picture would be so good to see. -TS |
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