Personally I really don't like cast resin or metal muzzles on tank guns . They always have tons of flash to clean up . IE I had a jordi rubio barrel for my marder project a few months back , and used just the barrel part , and the "Kit " muzzle as it was WAYYYYYY more accurate than Jordi's offering . And much less flash to boot ! I would suggest using Eduard barrels if they are available for your particular kit , ( arrow straight , excellent fit ,and muzzles cut out of the same piece of metal as the barrel ) second choice would be ABER , however , these require a fair amount of metalworking skills , not for the beginner by any means ! If you have no soldering skills , don't touch these ! I have used a CMK kit for my panther kit and it was pretty nice , but if you have a part such as a barrel , that requires it to be very very straight , don't go with resin anything . Resin almost always has issues with warping .