-very accurate. from about 20 yards I had a 4 inch shot grouping. Very nice.
-It looks cool.
the muzzle break can sometimes break paint. it only broke about 2 in 2000 on me so it's not that bad. and when it does break paint all of it sprays out the front of the barrel so it doesn't affect accuracy.
very good barrel for the money. I got mine for $40 and it's done me well. Only reason it doesn't get a 10 is the slight ball breakage problem but it's not too much to worry about.