Thanks for the info , I checked out Daewoo Rifle parts .com and there was lots of Good info and parts there . They can change the fake flash hider and re thread and crown the barrel if need be . I really like my Daewoo , it has bean a really great rifle ,it is very accurate and it will digest any ammo with out fail . If I get the stock kit and change the fake flash hider it will be even better . The AR that i got has a 1 in 8 twist so it is awesome with 55gr and up and my Daewoo has a 1 in 10 twist so it is great with 55gr down to 40gr .