Originally Posted by Sniper03
The following comment is not meant to be in anyway offensive. But for information purposes only! Keep in mind the D Rings put 3+ times the amount of pressure on the Extractor Claw when extracting the case. I certainly would not suggest anyone use any of the steel cast ammunition in their rifle when using a D-Ring. Increasing the possibility of damaging the Extractor. Brass is more forgiving. Personally I have never needed to use a D Ring on a rifle in over 20 years in the industry. I do recommend using the "Black Extractor Insert and Spring". It is the highest durometer and used on most all select fire weapons to promote reliability. I do know of one company who had about 3000 rifles they sold in Texas that would not extract reliably. Not to mention they put the wrong front sight assembly on the rifles! So they sent the agency D-Rings to correct the problem, rather than correcting the real cause. Quality of parts!
Bottom line is if it helps! Use them but keep an eye on your Extractor. When you run your finger across the Extractor Claw it should feel "Sharp" to the touch.
It is not offensive in any way, 03. I like discussion.
I've used ARs for about 30 years, and the only problems I've ever routinely had were failures to extract (Besides magazine problems).
I picked up an Oly CAR in a trade about 15 years ago and the only problems it had were FTE. I tried using heavier springs, but it would still FTE sometimes. So I tried the Defender D Ring and the problem went away.
That gun is long gun, but I have a few Colts and a Stags and they all have the Defender D installed, and since installation are 100% reliable.
And I have cases of Wolf .223 stacked high in the "dump" and routinely run 500-1,000 rds through my M4 in a day, with zero problems. The only problem with Wolf was one of the polymer coated rds gluing itself to the chamber wall after a long run on a very hot day, followed by a cool down period with a chambered rd. Now, when I run the rifle HOT, I clear the chamber before letting the rifle cool down. No issues anymore.
My shooting partner uses a custom made high power extractor spring on the advice of a friend of ours who is a Title 2 MG maker, and he says the "D" is not necessary, as well. But they have been working 100% for me for the last 15+ years, and I know they have made my ARs more reliable.
I like the Defender D Rings, and have noticed the increase in performance.