Rock River police trade uppers complete and in good working condition. They are all 1-7 and chrome lined. I have 7 available. 5 are 14.5 heavy barrel. 1 is 14.5 M4 profile. 1 is 10.5 heavy profile. They are in a unique configuration being 14.5/10.5 1-7 and chrome lined. Typically for LE only. Thanks