Quote:
Originally Posted by oneyeopn
the new colt requires an adaptor to allow you to use a 5.56 upper with it, I am afraid we would get back to the stacking tolerances and no one has said what the front pin diameter is on the new Colt.
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And since it's a 308 lower, it has the 308 buffer tube, spring, and buffer. Wonder how that would work with a 5.56 gas system?