This is a like new Low-Pro classic complete upper with 16" barrel with Miculek compensator, vented free float tube, JP adj gas block/w rail. This upper is in like new condition and shot very little and barrel broke in according to manufact. spec's. Can sell with or without a Nikon scope wchich is currently mounted on it. Asking $500.00 w/o scope and $750.00 with. Can send pic's to serious inquiries via e-mail.