Brownells is coming out with reproduction of Colt Model 605
It tries to replicate as much as possible, but has to make the barrel 0.5 inch longer to meet legal limit. It also has 1:12 twist which limits the ammo selection to 55gr ammo for the best performance.
Price is $1,299.99
https://www.brownells.com/firearms/rifles/semi-auto/brn-605-5-56-prod124180.aspx
