Posted: 12/10/2007 7:41:23 AM EDT
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I'm essentially building an Entry Tactical upper. The local gun shop has the 16" lightweight R4 profile barrel chrome lined 1:9 twist in stock. They also have what appears to be an older RRA stripped A4 upper. The only identifier is a white engraved "RRA" in a diagonal pattern at the front end of the flat top instead of the new RRA logo with crosshairs at the rear. Is this really a RRA upper and is it compatible with the R4 barrel mentioned? |
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Yup...we mark them differently if they go out as a rifle or complete upper half than we do for a stripped upper or an upper half assembly...the RRA at the front is standard on either a stripped upper or upper rec assy. Should be good to go with that barrel. Steve/RRA |