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Old 12-01-2011, 08:17   #3
Giblet Head
RustyDaleShackleford's Avatar
Join Date: Nov 2010
Location: North Carolina
Posts: 251
Originally Posted by boomhower View Post
Good luck!
Specifically what parts are different in a piston vs DI build? I can't seem to find parts descriptions.

I've heard that you actually want your castle nut not staked, while you do want your gas key staked. They say it's because the castle nut is unlikely to come loose, is difficult to remove if you decide to, and you can ruin many tools doing it.

I'm not worried about having trouble building the upper from scratch, and would prefer it if it's at all cheaper. I've got a cousin who lives nearby who's built several AR-15's and who said he'll help me and let me use his tools. So the cost of tools isn't a problem.

Is my thinking right? 1:7 is the fastest barrel twist rate, and since it stabilizes the heaviest bullets, that covers me for any bullet weight I'd want to use. Right?

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If you need something more powerful than a .45, you need something more powerful than a handgun.

Last edited by RustyDaleShackleford; 12-01-2011 at 08:17..
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