selling my upper for a handgun A1 receiver- oversized forward assist & the charging handle has a oversized latch 14.5" barrel with permanently attached flash hider--markings on the barrel-B MP 5.56 NATO 1:9 (bushmaster) a couple scratches on the delta ring & in front of the dust cover. some small marks on the barrel near the flash. less than a couple hundred rounds through the barrel. I've only put 20 rounds through the upper myself & it fired great.. primary arms quad rail installed (like new) a mix of OD & black XTM covers on 2 of the 4 rails. $400 for the complete upper . Gresham/Damascus/Oregon City only.