Buffer and buffer spring are from an LR308. Buffer tube and stock are never used. I switched out to a UBR as soon as I got the lower from Aero. FCG has about 30 rounds on it. BCM mod 0 is black, in like new condition (includes mounting screw). Everything in the picture is included. Don't really want to separate it. Asking $45 shipped/tracked/insured. Prefer PayPal.