
Originally Posted by
sr71plane
Has anyone ever run one of these Colts hard, like through a carbine course. No one replied, but my guess is that they would run just fine.
So.................has anyone done this ? Or, are these opinions just based on conjecture ??
During the late '90s, I sold Colt SP I and SP II uppers and stocks, retaining the BCGs and lowers. I bought Colt uppers, barrels and carbine stocks from from YTM. (Quality Parts, i.e. Bushamster, was pretty much the only other source of parts.) From 2003-2006 we ran several (three) of these FrankenColts through 1300 to 1500-round EAG Carbine Operator Classes without issue.
In 2006 we took Colt armorer instructor Dean Caputo's AR Diagnostics class in conjunction with an EAG class. Dean said using the original unshrouded Colt bolt carrier was GTG but might result in more wear on the firing pin and retaining pin. However, given that Colt was then shipping ARs with standard BCGs, he opined that, if possible, changing shrouded for unshrouded BCGs was a good idea.
Last year we sold the last SPI carrier in the gear locker, replacing it with one from a 6920. Until that time, still had no issues with the unshrouded BCGs.
YMMV.
Last edited by Submariner; 11-02-11 at 15:44.
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