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FIREDOG
01-09-10, 09:59
A friend of mine wants me to build up an AR15 for his son. He already has a complete lower receiver with a collapsable butt stock and a 20" lightweight A1 style barrel.

My question is, is it safe to run a 20" barrel with a M4 style collapsable butt stock (shorter spring and lighter buffer)? I wasn't sure if it would beat the butt stock up.

Unfortunately, he is insistent on using these components right now. Would running an H buffer or an H2 help neutralize the issue?

I would appreciate any input.

Thanks,
FIREDOG

EzGoingKev
01-09-10, 11:49
The 20" barrel should have a rifle length gas system on it so it would be easier on the parts.

tracker722
01-09-10, 19:41
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