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). Quote Link to comment Share on other sites More sharing options...
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