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9/22/2017 12:11:25 AM
Posted: 9/13/2003 7:29:54 PM EDT
any of you ever use them?
any success?

I picked up a set (would you call them a set?)
for my 20 inch A3 DPMS.
They work great, don't have to worry about the spacing.
I was just wondering if I should use them in all my AR's
Link Posted: 9/13/2003 7:42:53 PM EDT
FWIW, I've about 2000-rds. through my AR with the one-piece ring from Oly. No problems here. Supposedly, it's guaranteed for something like 10,000-rds.
Link Posted: 9/13/2003 8:22:56 PM EDT
some people report feed problems, i think. The one piece is stifer than 3 individual rings, hold your bolt carrier bolt side down and see how much force it takes to have the bolt move down compared to the 3 individual rings.
Link Posted: 9/13/2003 9:40:56 PM EDT
I put a set of the Mcfarland's in my problematic M4 along with a Wolff extractor spring and D ring...It was nothing short of magic with reliability at 100%. Same story with a friend of mine's M4 that was doing the same thing.
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