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Posted: 10/18/2008 12:46:10 PM EST
The O ring / extractor upgrade. Does anyone know the specs on the ring itself? I need to buy extras and the hardware store sells lots of sizes that look similar to them.

After having a new 10" upper not eject reloads and wolf today, I put the O ring in and it started cycling. It is a pretty important part.
Link Posted: 10/18/2008 12:54:32 PM EST
I forget the exact part number, but i have hundreds.

IM me your shipping address and I'll send you some.
Link Posted: 10/18/2008 1:52:51 PM EST
[Last Edit: 10/18/2008 1:53:44 PM EST by LGK]
copied from falaraks "how to assemble an ar15 receiver" tacked thread

O-ring for extractor enhancement: The NSWC Crane extractor o-ring is constructed of Viton. OD is 1/4", ID is 1/8". Thickness is 1/16". You can order a bag of 25, Part No. ORV-006, for $2.65 from
www.smallparts.com/products/descriptions/orv.cfm


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