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Full Length M4 Tube


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Could be anything, but $100 is a good deal as long as it's not cardboard, lol
Oh that is classic Unobtanium, There are a few manufacturers out there, most important is check the lengh and make sure the threads are a true straight cut and not modified acme (or at least a very good modified acme.)



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I was just about to pipe in ... All my FL tubes are marked with "U S" and a batch number stamped on the collar at the receiver end. Also I never did straight parkerizing, all the tubes have been "gun kote" "diamond- kote" polymer finish most matte black color. And yes, a square cut thread.

I still have tubes, and receintly reduced the price to $145 including shipping.

Joe B [email protected]

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