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AR15.COM
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10/30/2007 9:33:39 PM EDT
i am building my first 9mm AR and am using an ACE Ultralite A2 length stock. I purchased the RRA buffer and spaces, my question is what spring do i use, should i use a standard A2 spring or something different. thanks
10/31/2007 9:40:32 AM EDT
[#1]
I used the standard A2 spring.  No problems.  Didn't know there is one specially made for the 9mm
10/31/2007 9:45:56 AM EDT
[#2]
yeah i called Rock River and they told me to use a CAR length .223 spring if i'm using a buffer spacer, i"ll try both thanks.
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