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Old December 6, 2021, 04:50 PM   #8
Willie Lowman
Senior Member
Join Date: March 5, 2009
Location: Uh-Hi-O
Posts: 2,939
I have 21 years of experience with AR rifles. I have owned half a dozen and shot enough to have worn out the barrel on a Colt Hbar. I have never had a pin walk. I guess it would be very hard to tell if it was rotating but I have never seen the need for these special pins.
"9mm has a very long history of being a pointy little bullet moving quickly" --Sevens
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