I have some new info and a correction to make from previously posted info. The specs come directly from CCI/Mike Casady on 3/6/13...
The inner diameter (I.D.) of the stock CCI valve tube is .180 (#15)
The spring rate of the CCI red spring is 15% more (heavier) than the standard (silver) spring. The spring rate of the CCI blue spring is 15% less (lighter) than the standard (silver) spring.
Correction to what was previously posted - The threads of a SC feed tube have a 32tpi pitch that tapers from .805" out to .855" and is .700 in length.
That is all.
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