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4/24/2010 8:48:37 AM EDT
Any difference in Buffer springs from Carbine to Midlength?
As far as Mil spec is concerned

I know its a silly question,but i really dont know.Just want to make sure i build it right
4/24/2010 9:34:09 AM EDT
[#1]
If it's a collapsible stock the spring is the same Carbine or middy.
4/24/2010 10:13:20 AM EDT
[#2]
buffer springs are determined by extension tube, not upper.  I guess if you wanted you could run an hipower spring... but it may be too much.
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