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9/22/2017 12:11:25 AM
Posted: 9/26/2005 4:44:35 PM EDT
Just bought a new LMT bolt carier group (regular, not enhanced bolt) and was just wondering what the O-ring helps with.


Thanks in advance

Red

Link Posted: 9/26/2005 5:24:57 PM EDT
Extraction.
Link Posted: 9/26/2005 5:42:38 PM EDT
I mean, are there any issues with extraction regarding any certain bolts, ammunition, manufacturers and so on, where it would be beneficial to use the O-ring extractor.

Link Posted: 9/26/2005 6:37:47 PM EDT

Originally Posted By redrumnine:
I mean, are there any issues with extraction regarding any certain bolts, ammunition, manufacturers and so on, where it would be beneficial to use the O-ring extractor.



It's more beneficial to use it with M4 carbines, M16s and SBRs.

Other alternatives are Wolff extra power extractor spring and the D-fender.

Wolff website recommends their extractor spring should be used in combination with the new black extractor spring insert available from Colt.

Springs are also recommended for the AR-15.


Wolff Gunsprings website link
Link Posted: 9/26/2005 7:02:54 PM EDT
Thanks for the info, im going to look into those springs.
Link Posted: 9/26/2005 10:20:42 PM EDT
do a search on any one of them, there has been a great deal of discussion between all of them
Link Posted: 9/27/2005 10:02:08 AM EDT
FWIW, I use the Wolff spring, by itself, using no O-ring or insert and it runs fine, including harsh use in carbine class. That's not as recommended by the manufacturer, but I'm still of the opinion that the insert does next to nothing, regardless of the color.
Link Posted: 9/28/2005 8:17:47 PM EDT
It makes your wallet lighter .
Link Posted: 9/28/2005 10:34:09 PM EDT
I have to say I have seen a time where the black O-ring does help with extraction. My bud let me borrow his AR-10, I went to the range and it failed to extract 90% of the time. I think Armalite installs one O-ring on the extractor spring from the factory, but IMO this is useless because there is so much room for travel of the AR10 extractor spring that it did not compress the O-ring.

I went to the local hardware store and picked up a second O-ring for .28$. I doubled up the O-rings on the extractor and it ran like a champ.

Matt Carper
Link Posted: 9/29/2005 5:34:24 AM EDT
AR10s require 2 Orings and this is a widely known fact.
Link Posted: 9/29/2005 5:41:36 AM EDT
[Last Edit: 9/29/2005 6:57:05 AM EDT by Yojimbo]

Originally Posted By DevL:
AR10s require 2 Orings and this is a widely known fact.



Why doesn't Armalite fix this by making the necessary extra power spring instead of using o-ring band-aids?

Seriously, the fact that two o-rings are needed should be a clue!

Maybe Wolff will start making some AR10 extra power springs soon...
Link Posted: 9/29/2005 6:30:19 AM EDT

Originally Posted By Yojimbo:

Originally Posted By DevL:
AR10s require 2 Orings and this is a widely known fact.



Why doesn't Armalite fix this by making the necessary extra power spring instead of using o-ring band-aids?

Seriously, the fact that two o-rings are needed should be clue!

Maybe Wolff will start making some AR10 extra power springs soon...



I've been holding my breath, waiting for that............................................turning blue.
Link Posted: 9/29/2005 11:30:01 AM EDT

Originally Posted By DevL:
AR10s require 2 Orings and this is a widely known fact.



Regardless of this being a widely know fact, the question was if O-rings helped with any thing or not.

Matt
Link Posted: 9/29/2005 2:05:19 PM EDT

Originally Posted By Matth3wdean:
The question was if O-rings helped with any thing or not.



Yes, as they multiply the extraction force.
Link Posted: 9/30/2005 3:51:27 AM EDT

Originally Posted By M4Madness:

Originally Posted By Matth3wdean:
The question was if O-rings helped with any thing or not.



Yes, as they multiply the extraction force.




+1
Link Posted: 9/30/2005 3:43:40 PM EDT
Thanks for the info fellas. I ordered a few, just to have around since they are so inexpensive. If i have any issues, ill drop one in and see if it fixes any issues.

Just wanted to reply and say thanks for the replies.
Link Posted: 10/4/2005 8:23:26 AM EDT
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