20 inch barrel. Specwar will do whilst I decide on possibly something else and waiting the 12-18 months F4s are apparently taking now. I'm not running around with it though.
Got rid of my Razor II 4.5-27 for an ATACR 7-35.....absolutely no regrets, a definitely superior scope. To me the ATACR has better pop and performance in low light. If money is a factor then you'll get . alot of scope with the Razor.