Great condition, lots of upgrades.  Langdon Tactical fastback mount ready for 509T; LT Super Duty Sight; Magpul stock and adapter from GG&G; mag cover, barrel clamp, and follower also from GG&G; Midwest Industries handguard.  Won't come with the light or the sling.  Asking $2100 for everything.  Cash preferred but might be interested in high-quality trades but I'm picky.  Text 918287six653 if interested.  Must meet in Owasso area and must be legal to own.