chp5 Posted March 14, 2005 Share Posted March 14, 2005 I just picked up a AR rifle length FF tube off eBay for a good price. It's aluminum and seems to be well made with lightening slots made into the end of the tube. It's a two piece set, with no markings. Two questions: 1. Can anyone tell me who makes it? 2. My JP tube has an rubber O ring that goes on the nut. This one doesn't. Do I need an O ring? Thanks (ignore the carbine handguards in the pic). Link to comment Share on other sites More sharing options...
stingerjg Posted March 14, 2005 Share Posted March 14, 2005 it looks like a fluted handguard avail from F A ENTERPRISES. As far as the O ring goes, i've never owned a FF tube that needed an O ring. I think JP puts it on so you can index the handguard. Link to comment Share on other sites More sharing options...
George Posted March 14, 2005 Share Posted March 14, 2005 Yes, the JP handguard O-Ring is there to allow it to be indexed. It also requires a little (blue) LocTite to keep it in position, otherwise your handguard mounted sight might not hold zero for the long haul. -- Regards, Link to comment Share on other sites More sharing options...
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