Sig Sauer MCX Rattler Upper 300 Blackout AR Conversion, 5.5" Barrel w/ Aero Precision Lower. Comes with foldable Sig stock(Tax Stamp Required for use), Sig stock adapter low profile tube and 3 - 30rd magazines. Asking $2000.00 for everything, open to all trades. Text or Call Felix @ 512six44four8five7.